Merge pull request #334 from actions/thboop/updatetov4

Update to new v4 release

Author: pje

README.md

@@ -97,7 +97,7 @@ jobs:
   triage:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/labeler@v3
+    - uses: actions/labeler@v4
       with:
         repo-token: "${{ secrets.GITHUB_TOKEN }}"
 ```