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/dep-diff-pull_request.yml

@@ -29,7 +29,7 @@ jobs:
           echo "artifacts=${ARTIFACTS}" >> $GITHUB_OUTPUT
 
       - name: Clone base version
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: ${{ steps.prepare.outputs.base }}
           path: base
@@ -50,7 +50,7 @@ jobs:
             ${{ runner.os }}-maven-
 
       - name: Clone PR version
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: pr