fix: prevent infinite loop in workflow automation

- Add condition to skip integrate-develop workflow for sync commits from main
- Prevents develop→staging→main→develop infinite loop
- Ignores commits with 'chore: sync version updates from main' message

Author: Seungwoo321

.github/workflows/integrate-develop.yml

@@ -13,6 +13,8 @@ jobs:
   create-or-update-pr:
     name: Create or Update PR to Staging
     runs-on: ubuntu-latest
+    # Skip if this is a sync commit from main
+    if: ${{ !contains(github.event.head_commit.message, 'chore: sync version updates from main') && !contains(github.event.head_commit.message, 'Sync: main → develop') }}
     permissions:
       contents: write
       pull-requests: write