Updating workflow actions

Author: bfren

.github/workflows/workflow-cleanup.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Delete old workflow runs
-        uses: bfren/delete-workflow-runs@main
+        uses: bfren/delete-workflow-runs@v2
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           repository: ${{ github.repository }}