Change tag to latest, remove gitlab-registry from branches to launch ci

.gitlab-ci.yml

@@ -20,12 +20,11 @@ build_image:
   image: 'docker:18.09.7'
   only:
     - master
-    - gitlab-registry
   services:
     - 'docker:18.09.7-dind'
   before_script:
     - ''
   script:
-    - docker build -t $CI_REGISTRY_IMAGE:test .
+    - docker build -t $CI_REGISTRY_IMAGE .
     - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
     - docker push $CI_REGISTRY_IMAGE