build(deps): 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/release-please.yml

@@ -21,7 +21,7 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Checkout source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         if: ${{ steps.release_please.outputs.release_created }}
         with:
           fetch-depth: 0

.github/workflows/test.yml

@@ -8,7 +8,7 @@ jobs:
     steps:
       - name: Checkout
         id: checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install/Cache dependencies
         id: cache_pkg_deps