fix: correct workflow syntax errors

- Fix integrate-develop.yml condition syntax
- Remove trailing spaces from update-version.yml
- All workflows now pass yamllint validation

Author: Seungwoo321

.github/workflows/integrate-develop.yml

@@ -14,7 +14,7 @@ jobs:
     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, 'sync version updates from main') && !contains(github.event.head_commit.message, 'Sync: main → develop') && !startsWith(github.event.head_commit.message, 'Merge pull request') && github.event.head_commit.author.name != 'github-actions[bot]' || !contains(github.event.head_commit.message, 'sync/main-to-develop') }}
+    if: "!contains(github.event.head_commit.message, 'chore: sync version updates from main')"
     permissions:
       contents: write
       pull-requests: write

.github/workflows/update-version.yml

@@ -147,7 +147,7 @@ jobs:
 
           # Push directly to develop
           git push origin develop
-          
+
           echo "✅ Successfully synced main to develop"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -165,7 +165,7 @@ jobs:
 
           # Push directly to staging
           git push origin staging
-          
+
           echo "✅ Successfully synced main to staging"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}