Add a keep alive job so that it does not get disabled

Signed-off-by: Tony Xiang <[email protected]>

Author: TonyXiang8787

.github/workflows/sync-examples.yml

@@ -49,3 +49,12 @@ jobs:
           commit_user_name: GitHub Actions Bot
           commit_user_email: [email protected]
           commit_author: GitHub Actions Bot <[email protected]>
+  
+  keepalive-job:
+    name: Keepalive Workflow
+    runs-on: ubuntu-latest
+    permissions:
+      actions: write
+    steps:
+      - uses: actions/checkout@v4
+      - uses: gautamkrishnar/keepalive-workflow@v2