use codeclimate to run rubocop

.codeclimate.yml

@@ -0,0 +1,5 @@
+plugins:
+  rubocop:
+    enabled: true
+    config:
+      file: .rubocop.yml

.gitlab-ci.yml

@@ -1,8 +1,4 @@
-rubocop:
+include:
-  stage: test
+  - template: Code-Quality.gitlab-ci.yml
-  only:
+  stages:
-    - dev
+    - test
-  image: sleede/rubocop-fm:latest
-  script:
-    - git diff --name-only master --diff-filter AMT | grep \\.rb$ | xargs bundle exec rubocop
-