Bump TimonVS/pr-labeler-action from 3 to 4

Bumps [TimonVS/pr-labeler-action](https://github.com/timonvs/pr-labeler-action) from 3 to 4.
- [Release notes](https://github.com/timonvs/pr-labeler-action/releases)
- [Commits](https://github.com/timonvs/pr-labeler-action/compare/v3...v4)

---
updated-dependencies:
- dependency-name: TimonVS/pr-labeler-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/pr-labeler.yml

@@ -7,6 +7,6 @@ jobs:
   pr-labeler:
     runs-on: ubuntu-latest
     steps:
-      - uses: TimonVS/pr-labeler-action@v3
+      - uses: TimonVS/pr-labeler-action@v4
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}