Fix Rubocop offenses in serializer entities

app/serializers/stage_entity.rb

@@ -7,7 +7,8 @@ class StageEntity < Grape::Entity
     "#{stage.name}: #{detailed_status.label}"
   end
 
-  expose :detailed_status, as: :status,
+  expose :detailed_status,
+    as: :status,
     with: StatusEntity
 
   expose :path do |stage|

spec/serializers/request_aware_entity_spec.rb

@@ -15,7 +15,7 @@ describe RequestAwareEntity do
 
   it 'fetches request from options' do
     expect(subject).to receive(:options)
-      .and_return({request: 'some value'})
+      .and_return({ request: 'some value' })
 
     expect(subject.request).to eq 'some value'
   end