feat(github): merge checks workflow [pulumi]

Author: mergealot

.github/workflows/merge-checks.yml

@@ -13,6 +13,7 @@ jobs:
   merge-checks:
     runs-on: ubuntu-22.04
     if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository
+    timeout-minutes: 5
     permissions:
       contents: read
       statuses: write