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-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/test-on-push-and-pr.yml

@@ -15,7 +15,7 @@ jobs:
         node-version: [18, 20, 22]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Build and run tests for Node.js ${{ matrix.node-version }}
       run: |
         docker build -f test/unit/Dockerfile.nodejs${{ matrix.node-version }}.x -t unit/nodejs.${{ matrix.node-version }}x .
@@ -29,6 +29,6 @@ jobs:
         distro: [alpine, amazonlinux, centos, debian, ubuntu]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Run ${{ matrix.distro }} integration tests
       run: DISTRO=${{ matrix.distro }} make test-integ