Fix indentation offenses in ensure stage service

spec/services/ci/ensure_stage_service_spec.rb

@@ -10,27 +10,27 @@ describe Ci::EnsureStageService, '#execute' do
   let(:service) { described_class.new(project, user) }
 
   context 'when build has a stage assigned' do
-   it 'does not create a new stage' do
-     job.assign_attributes(stage_id: stage.id)
+    it 'does not create a new stage' do
+      job.assign_attributes(stage_id: stage.id)
 
-     expect { service.execute(job) }.not_to change { Ci::Stage.count }
-   end
+      expect { service.execute(job) }.not_to change { Ci::Stage.count }
+    end
   end
 
   context 'when build does not have a stage assigned' do
-   it 'creates a new stage' do
-     job.assign_attributes(stage_id: nil, stage: 'test')
+    it 'creates a new stage' do
+      job.assign_attributes(stage_id: nil, stage: 'test')
 
-     expect { service.execute(job) }.to change { Ci::Stage.count }.by(1)
-   end
+      expect { service.execute(job) }.to change { Ci::Stage.count }.by(1)
+    end
   end
 
   context 'when build is invalid' do
-   it 'does not create a new stage' do
-     job.assign_attributes(stage_id: nil, ref: nil)
+    it 'does not create a new stage' do
+      job.assign_attributes(stage_id: nil, ref: nil)
 
-     expect { service.execute(job) }.not_to change { Ci::Stage.count }
-   end
+      expect { service.execute(job) }.not_to change { Ci::Stage.count }
+    end
   end
 
   context 'when new stage can not be created because of an exception' do