chore(deps): update actions/labeler action to v4 (freeCodeCamp#45327)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

.github/workflows/labeler.yaml

@@ -6,7 +6,7 @@ jobs:
   triage:
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/labeler@v3
+      - uses: actions/labeler@v4
         with:
           repo-token: '${{ secrets.GITHUB_TOKEN }}'
           sync-labels: true