Update labeler.yml

Author: MHuiG

.github/workflows/labeler.yml

@@ -8,6 +8,6 @@ jobs:
     if: github.repository == 'volantis-x/hexo-theme-volantis'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/labeler@v6
+      - uses: actions/labeler@v4
         with:
-          repo-token: "${{ secrets.GITHUB_TOKEN }}"
+          repo-token: "${{ secrets.GITHUB_TOKEN }}"