chore(deps): update actions/checkout action to v6 (#520)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -79,7 +79,7 @@ jobs:
     name: 🏗️ Dev dependencies
     runs-on: [self-hosted, nix]
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: 🏗️ Build dev dependencies
         run: nix build .#devDeps
   tests:
@@ -89,7 +89,7 @@ jobs:
       - dev-deps
     if: '!github.event.pull_request.draft'
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: 🧪 Run tests
         run: nix build ".#checks.$(nix eval --impure --expr 'builtins.currentSystem').tests"
       - name: 🧪 Run tests for external solver CaDiCaL
@@ -103,15 +103,15 @@ jobs:
     runs-on: [self-hosted, nix]
     if: '!github.event.pull_request.draft'
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: 🏗️ Check MSRV builds
         run: nix build ".#checks.$(nix eval --impure --expr 'builtins.currentSystem').msrv"
   wasm-check:
     name: 🏄 WASM check
     runs-on: [self-hosted, nix]
     if: '!github.event.pull_request.draft'
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: 🏄 Check WASM compatibility
         run: nix build ".#checks.$(nix eval --impure --expr 'builtins.currentSystem').wasm"
   code-quality:
@@ -120,7 +120,7 @@ jobs:
     needs:
       - dev-deps
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: ✨ Check formatting
         run: nix build ".#checks.$(nix eval --impure --expr 'builtins.currentSystem').treefmt"
       - name: ✨ Cargo deny bans licenses sources
@@ -142,8 +142,8 @@ jobs:
     runs-on: [self-hosted, nix]
     if: '!github.event.pull_request.draft'
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: ✨ Build Python API and check
         run: nix build ".#checks.$(nix eval --impure --expr 'builtins.currentSystem').pyapi"
   doc:
@@ -153,8 +153,8 @@ jobs:
       - dev-deps
     if: '!github.event.pull_request.draft'
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: ✨ Build doc
         run: nix build ".#checks.$(nix eval --impure --expr 'builtins.currentSystem').doc"
       - name: 🧪 Run doc tests
@@ -166,7 +166,7 @@ jobs:
       - tests
       - doc
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: ✨ Collect coverage reports
         run: |
           nix build .#testCoverage
@@ -185,7 +185,7 @@ jobs:
       - dev-deps
     if: "!github.event.pull_request.draft && contains(github.event.pull_request.labels.*.name, 'heavy-tests')"
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: ✨ Run feature powerset checks
         run: nix build ".#checks.$(nix eval --impure --expr 'builtins.currentSystem').featurePowerset"
   cadical-each-feature:
@@ -195,7 +195,7 @@ jobs:
       - dev-deps
     if: "!github.event.pull_request.draft && contains(github.event.pull_request.labels.*.name, 'solvers/cadical')"
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: 🧪 Test each feature
         run: nix develop ".#ci" --command cargo hack --each-feature --clean-per-run --exclude-features logging nextest run -p rustsat-cadical
   kissat-each-feature:
@@ -205,7 +205,7 @@ jobs:
       - dev-deps
     if: "!github.event.pull_request.draft && contains(github.event.pull_request.labels.*.name, 'solvers/kissat')"
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: 🧪 Test each feature
         run: nix develop ".#ci" --command cargo hack --each-feature --clean-per-run nextest run -p rustsat-kissat
   cadical-valgrind:
@@ -215,7 +215,7 @@ jobs:
       - dev-deps
     if: "!github.event.pull_request.draft && contains(github.event.pull_request.labels.*.name, 'solvers/cadical')"
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: 🧪 Tests through valgrind
         run: nix build ".#checks.$(nix eval --impure --expr 'builtins.currentSystem').cadicalValgrind"
   kissat-valgrind:
@@ -225,7 +225,7 @@ jobs:
       - dev-deps
     if: "!github.event.pull_request.draft && contains(github.event.pull_request.labels.*.name, 'solvers/kissat')"
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: 🧪 Tests through valgrind
         run: nix build ".#checks.$(nix eval --impure --expr 'builtins.currentSystem').kissatValgrind"
   minisat-valgrind:
@@ -235,7 +235,7 @@ jobs:
       - dev-deps
     if: "!github.event.pull_request.draft && contains(github.event.pull_request.labels.*.name, 'solvers/minisat')"
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: 🧪 Tests through valgrind
         run: nix build ".#checks.$(nix eval --impure --expr 'builtins.currentSystem').minisatValgrind"
   glucose-valgrind:
@@ -245,7 +245,7 @@ jobs:
       - dev-deps
     if: "!github.event.pull_request.draft && contains(github.event.pull_request.labels.*.name, 'solvers/glucose')"
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: 🧪 Tests through valgrind
         run: nix build ".#checks.$(nix eval --impure --expr 'builtins.currentSystem').glucoseValgrind"
   capi-valgrind:
@@ -255,6 +255,6 @@ jobs:
       - dev-deps
     if: "!github.event.pull_request.draft && contains(github.event.pull_request.labels.*.name, 'solvers/capi')"
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: 🧪 Tests through valgrind
         run: nix build ".#checks.$(nix eval --impure --expr 'builtins.currentSystem').capiValgrind"

.github/workflows/non-linux.yml

@@ -14,7 +14,7 @@ jobs:
     name: 🧪 MacOS workspace tests
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - uses: Swatinem/rust-cache@v2
       - uses: taiki-e/install-action@nextest
       - name: 🧪 Run tests
@@ -23,7 +23,7 @@ jobs:
     name: 🧪 Windows workspace tests
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - uses: Swatinem/rust-cache@v2
       - uses: taiki-e/install-action@nextest
       - name: 🧪 Run tests
@@ -35,7 +35,7 @@ jobs:
         os: [macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - uses: Swatinem/rust-cache@v2
       - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6
         with:

.github/workflows/pages.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: [self-hosted, nix]
     steps:
       - name: Checkout
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: 🏗️ Build pages
         run: nix build .#pages
       - name: ⬆️ Upload artifact

.github/workflows/pyapi.yml

@@ -18,7 +18,7 @@ jobs:
       matrix:
         target: [x86_64, x86, aarch64, armv7, s390x, ppc64le]
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6
         with:
           python-version: '3.14'
@@ -41,7 +41,7 @@ jobs:
       matrix:
         target: [x64, x86]
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6
         with:
           python-version: '3.14'
@@ -64,7 +64,7 @@ jobs:
       matrix:
         target: [x86_64, aarch64]
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6
         with:
           python-version: '3.14'
@@ -83,7 +83,7 @@ jobs:
     name: Build sdist
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: Build sdist
         uses: PyO3/maturin-action@v1
         with:

.github/workflows/release-plz.yml

@@ -22,7 +22,7 @@ jobs:
           app-id: ${{ secrets.RELEASE_PLZ_ID }} # <-- GitHub App ID secret name
           private-key: ${{ secrets.RELEASE_PLZ_PRIVATE_KEY }} # <-- GitHub App private key secret name
       - name: Checkout repository
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
         with:
           fetch-depth: 0
           token: ${{ steps.generate-token.outputs.token }}
@@ -51,7 +51,7 @@ jobs:
           app-id: ${{ secrets.RELEASE_PLZ_ID }} # <-- GitHub App ID secret name
           private-key: ${{ secrets.RELEASE_PLZ_PRIVATE_KEY }} # <-- GitHub App private key secret name
       - name: Checkout repository
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
         with:
           fetch-depth: 0
           token: ${{ steps.generate-token.outputs.token }}

.github/workflows/semver-checks.yml

@@ -10,6 +10,6 @@ jobs:
     name: 🛡️ Semver checks
     runs-on: [self-hosted, nix]
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: 🛡️ Run semver checks
         run: nix run nixpkgs#just semver-checks