Fix static analysis

spec/lib/gitlab/background_migration/migrate_legacy_artifacts_spec.rb

@@ -75,7 +75,7 @@ describe Gitlab::BackgroundMigration::MigrateLegacyArtifacts, :migration, schema
             expect(jobs.pluck('artifacts_file_store, artifacts_metadata_store')).to eq([[nil, nil]])
             described_class.new.perform(*range)
-  
+
             expect(job_artifacts.pluck('file_store')).to eq([1, 1])
           end
         end
@@ -87,7 +87,7 @@ describe Gitlab::BackgroundMigration::MigrateLegacyArtifacts, :migration, schema
           it 'does not migrate' do
             described_class.new.perform(*range)
-  
+
             expect(job_artifacts.pluck('id')).to eq([1])
           end
         end

spec/migrations/migrate_legacy_artifacts_to_job_artifacts_spec.rb

@@ -26,7 +26,7 @@ describe MigrateLegacyArtifactsToJobArtifacts, :migration, :sidekiq do
       Sidekiq::Testing.fake! do
         Timecop.freeze do
           migrate!
-  
+
           expect(migration_name).to be_scheduled_delayed_migration(5.minutes, 1, 1)
           expect(BackgroundMigrationWorker.jobs.size).to eq 1
         end
@@ -41,7 +41,7 @@ describe MigrateLegacyArtifactsToJobArtifacts, :migration, :sidekiq do
       it 'does not schedule background migrations' do
         Sidekiq::Testing.fake! do
           migrate!
-  
+
           expect(BackgroundMigrationWorker.jobs.size).to eq 0
         end
       end