Pull Request Labeler - Undo workaround sync-labels bug (#7667)

* Undo labeler workaround for sync-labels

* Update label-prs.yml

* Update label-prs.yml

* Update label-prs.yml

* Update label-prs.yml

* Update label-prs.yml

* Update label-prs.yml

Author: Illviljan

.github/workflows/label-prs.yml

@@ -9,6 +9,4 @@ jobs:
     - uses: actions/labeler@main
       with:
         repo-token: "${{ secrets.GITHUB_TOKEN }}"
-        # Workaround for sync-labels bug:
-        # https://github.com/actions/labeler/issues/112
-        sync-labels: ""
+        sync-labels: false