Update labeler.yml

Author: bryannaegele

.github/workflows/labeler.yml

@@ -5,6 +5,6 @@ jobs:
   triage:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/labeler@main
+    - uses: actions/labeler@v4
       with:
         repo-token: "${{ secrets.GITHUB_TOKEN }}"