Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -84,6 +84,7 @@ build-backend:
 # DEPLOYMENT: Déploiement du frontend et du backend
 deploy:
   stage: deploy
+  needs: ["build-frontend", "build-backend"]
   script:
     - echo "Deploying both frontend and backend"
     - echo "Deploying frontend dist/ folder"