fix gitlab-ci tag

.gitlab-ci.yml

@@ -8,7 +8,7 @@ build:
     name: gcr.io/kaniko-project/executor:debug
     entrypoint: [""]
   tags:
-    - minsky
+    - docker
   script:
     - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"},\"https://index.docker.io/v1/\":{ \"auth\":\"$HUB_AUTH\"}}}" > /kaniko/.docker/config.json
     # The skip-tls-verify flag is there because our registry certificate is self signed