Make Rubocop and Danger happy

app/models/ci/build.rb

@@ -781,7 +781,7 @@ module Ci
       end
     end
 
-    def predefined_variables
+    def predefined_variables # rubocop:disable Metrics/AbcSize
       Gitlab::Ci::Variables::Collection.new.tap do |variables|
         variables.append(key: 'CI', value: 'true')
         variables.append(key: 'GITLAB_CI', value: 'true')

lib/gitlab/ci/config/normalizer.rb

+# frozen_string_literal: true
+
 module Gitlab
   module Ci
     class Config

spec/lib/gitlab/ci/config/normalizer_spec.rb

+# frozen_string_literal: true
+
 require 'fast_spec_helper'
 
 describe Gitlab::Ci::Config::Normalizer do