add step to check if the branch is updated

.github/workflows/main.yaml

@@ -67,8 +67,28 @@ env:
   SUPERSET_DB_DATABASE: postgres
 
 jobs:
-  main:
+  check-branch:
+    runs-on: ubuntu-latest
+
+    timeout-minutes: 2
+    concurrency:
+      group: ci-check-branch-${{ github.ref }}
+      cancel-in-progress: true
+
+    steps:
+      - uses: actions/checkout@v4
+        if: ${{ github.event_name == 'pull_request' }}
+        with:
+          fetch-depth: 0
+
+      - name: Check if the PR's branch is updated
+        if: ${{ github.event_name == 'pull_request' }}
+        uses: osl-incubator/[email protected]
+        with:
+          remote_branch: origin/main
+          pr_sha: ${{ github.event.pull_request.head.sha }}
 
+  main:
     runs-on: ubuntu-latest
     timeout-minutes: 55
     defaults: