ci: Bump actions/checkout from 3.6.0 to 4.1.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 3.6.0 to 4.1.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3.6.0...v4.1.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/release.yaml

@@ -17,7 +17,7 @@ jobs:
       PIP_CONSTRAINT: .github/workflows/constraints.txt
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3.6.0
+        uses: actions/checkout@v4.1.0
         with:
           fetch-depth: 0
 

.github/workflows/test.yml

@@ -37,7 +37,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3.6.0
+      uses: actions/checkout@v4.1.0
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4.7.0