Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -6,6 +6,7 @@ pages:
   image: node:latest
   script:
   - npm install
+  - ./node_modules/gulp/bin/gulp.js
   - ./node_modules/gulp/bin/gulp.js config --env default
   - ./node_modules/gulp/bin/gulp.js build:web --release
   - mkdir .public