Update actions/labeler action to v6

Author: renovate[bot]

.github/workflows/pr-config.yaml

@@ -70,7 +70,7 @@ jobs:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Label Chart 🏷️
-        uses: actions/labeler@v5
+        uses: actions/labeler@v6
         with:
           repo-token: "${{ secrets.GITHUB_TOKEN }}"
           sync-labels: true