refactor(dependabot): skip deploy step (#180)

aligned CI/CD scripts

Author: mfranzke

.github/workflows/default.yml

@@ -37,5 +37,5 @@ jobs:
 
   deploy:
     uses: ./.github/workflows/02-deploy-gh-pages.yml
-    if: ${{ github.actor != 'dependabot[bot]' && github.event.pull_request == null || github.event.pull_request.head.repo.owner.login == 'db-ui' }}
+    if: ${{ github.actor != 'dependabot[bot]' && (github.event.pull_request == null || github.event.pull_request.head.repo.owner.login == 'db-ui') }}
     needs: [lint, build]