fix workflow rules

.gitlab-ci.yml

@@ -2,6 +2,14 @@ stages:
   - build
   - deploy
 
+workflow:
+  rules:
+    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
+    - if: '$CI_COMMIT_BRANCH && $CI_OPEN_MERGE_REQUESTS && $CI_COMMIT_TAG == null'
+      when: never
+    - if: '$CI_COMMIT_BRANCH'
+    - if: $CI_COMMIT_TAG != null
+
 build-dev:
   image: node:latest
   tags: