Try to figure out where to pull the correct image from

.gitlab-ci.yml

@@ -4,11 +4,11 @@ before_script:
   - docker tag mongodb ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/mongodb:$MONGODB_VERSION
   - docker push mongodb
 
-image: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/node:12.16.3
+image: node:12.16.3
 
 # Info: http://docs.gitlab.com/ee/ci/docker/using_docker_images.html#what-is-a-service
 services:
-  - name: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/mongodb:4.2.6
+  - name: mongodb:4.2.6
     alias: mongodb
 
 variables: