use '-a' instead of '-all-tags' for push

.gitlab-ci.yml

@@ -58,7 +58,7 @@ build_client:
     - cd app/client
     - docker build -t $CLIENT_IMAGE_TAG .
     - docker tag $CLIENT_IMAGE_TAG $CLIENT_RELEASE_IMAGE_TAG
-    - docker image push --all-tags $CLIENT_IMAGE_TAG
+    - docker image push -a $CLIENT_IMAGE_TAG
 
 build_server:
   stage: build
@@ -81,4 +81,4 @@ build_server:
     - cd app/server
     - docker build -t $SERVER_IMAGE_TAG .
     - docker tag $SERVER_IMAGE_TAG $SERVER_RELEASE_IMAGE_TAG
-    - docker image push --all-tags $SERVER_IMAGE_TAG
+    - docker image push -a $SERVER_IMAGE_TAG