Enable Probot CheckGroup v5.1 (#15763)

(cherry picked from commit c55f80f)

Author: carmocca

.github/workflows/probot-check-group.yml

@@ -14,7 +14,7 @@ jobs:
     if: github.event.pull_request.draft == false
     timeout-minutes: 61  # in case something is wrong with the internal timeout
     steps:
-      - uses: Lightning-AI/probot@v5
+      - uses: Lightning-AI/probot@v5.1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with: