Bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/ci-pre-commit.yaml

@@ -14,7 +14,7 @@ jobs:
     name: Run Pre-commit Hooks
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ./.github/actions/setup-python-env
       # This step is necessary so long as we're allowing Pydantic 1 and Pydantic 2 via shimming
       - name: Force Pydantic 1

.github/workflows/ci-pytest.yaml

@@ -19,7 +19,7 @@ jobs:
         pydantic-version: ["1.10", "2.0"]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with:

.github/workflows/ci-schema-consistency.yaml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check-out the repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Python 3.9
         uses: ./.github/actions/setup-python-env