Wait for status checks to finish

Author: ralfhandl

.github/workflows/sync-dev-to-vX.Y-dev.yaml

@@ -11,6 +11,7 @@ on:
   push:
     branches:
       - dev
+      - main-sync-pr-wait-for-status-check # for testing only, remove later
 
 jobs:
   sync-branches:
@@ -46,6 +47,8 @@ jobs:
               --label "Housekeeping" \
               --title "$BASE: update from $HEAD" \
               --body "Merge \`$HEAD\` into \`$BASE\`.")
+            
+            gh pr checks $PR --fail-fast --watch
             gh pr merge $PR --merge --admin
           done
         env: