fix(cicd): issue on testing pipeline after variable adding

.gitlab-ci.yml

@@ -70,6 +70,7 @@ deploy_dev:
 test:
   stage: test
   image: ${CI_DEPENDENCY_PROXY_DIRECT_GROUP_IMAGE_PREFIX}/node:14.15.4
+  variables: {}
   services:
     - name: ${CI_DEPENDENCY_PROXY_DIRECT_GROUP_IMAGE_PREFIX}/elasticsearch:7.16.2
       alias: elasticsearch