Fix release condition to properly check commit messages

- Use join(github.event.commits.*.message, ' ') to check all commit messages in push
- This prevents release job from running when [release] is not in commit message

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: pditommaso

.github/workflows/main.yml

@@ -14,7 +14,7 @@ jobs:
 
   release:
     needs: build
-    if: github.ref == 'refs/heads/master' && contains(github.event.head_commit.message, '[release]')
+    if: github.ref == 'refs/heads/master' && contains(join(github.event.commits.*.message, ' '), '[release]')
     uses: ./.github/workflows/release.yml
     with:
       should_release: true