[github-actions] Bump actions/checkout in /.github/workflows (#18)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.1.7 to 4.2.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4.1.7...v4.2.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/run-tests.yaml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v4.1.7
+        uses: actions/checkout@v4.2.0
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5