Pin dependencies

Author: oxide-renovate[bot]

.github/workflows/ci.yml

@@ -21,10 +21,10 @@ jobs:
           # We need to fetch the entire history so clippy can run the
           # e2e-example/client build script.
           fetch-depth: 0
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@89b12181fb390509a0842a86cc55eeb8eb928c1d # stable
         with:
           components: rustfmt, clippy
-      - uses: taiki-e/install-action@just
+      - uses: taiki-e/install-action@bce24c81b952605a297de96ab0c372690a4eefbd # just
       - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
         with:
           key: partition-${{ matrix.partition }}
@@ -54,14 +54,14 @@ jobs:
           # We need to fetch the entire history so the tests can run merge-base
           # operations.
           fetch-depth: 0
-      - uses: dtolnay/rust-toolchain@master
+      - uses: dtolnay/rust-toolchain@7e38f4b43b4db5c8dd498af069a4f6196df1d067 # master
         with:
           toolchain: ${{ matrix.rust-version }}
       - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
         with:
           key: partition-${{ matrix.partition }}
-      - uses: taiki-e/install-action@nextest
-      - uses: taiki-e/install-action@v2
+      - uses: taiki-e/install-action@c6be25d576b61102b3af9c1f35a7f2b3a55b5e3a # nextest
+      - uses: taiki-e/install-action@e407f7bafb71fd004bc5c2da3032e5470cbb6ef0 # v2
         with:
           tool: jj-cli
       - name: Build

.github/workflows/release.yml

@@ -21,7 +21,7 @@ jobs:
       - uses: rust-lang/crates-io-auth-action@v1
         id: auth
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@stable
+        uses: dtolnay/rust-toolchain@89b12181fb390509a0842a86cc55eeb8eb928c1d # stable
       - name: Install cargo release
         uses: taiki-e/install-action@83ac0ad63c0167e6f06796fab0fce28db1bf3db0 # v2
         with: