fix: skip PR creation when milestone not set (#7368)

.github/workflows/auto-pr-to-release.yml

@@ -73,11 +73,12 @@ jobs:
  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
  - name: Check for milestone and if release branch exists
+ continue-on-error: true
  id: check_release_branch
  run: |
  if [ -z "${{ env.MILESTONE }}" ]; then
  echo "No milestone set. Exiting."
- exit 0
+ exit 1
  fi
 
  RELEASE_BRANCH="release-${{ env.MILESTONE }}"
@@ -87,10 +88,11 @@ jobs:
  echo "RELEASE_BRANCH=${RELEASE_BRANCH}" >> $GITHUB_ENV
  else
  echo "Release branch $RELEASE_BRANCH does not exist. Exiting."
- exit 0
+ exit 1
  fi
 
  - name: Create and push the new branch for the PR
+ if: ${{ steps.check_release_branch.outcome == 'success' }}
  run: |
  SEMANTIC_PR_TITLE="${{ env.PR_TITLE }}"