Run SonarQube only after php and frontend jobs succeed

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -72,6 +72,7 @@ jobs:
         run: bun run build
 
   sonarqube:
+    needs: [php, frontend]
     runs_on: ubuntu-latest
     steps:
       - name: Checkout