Fix notification spec

spec/services/notification_service_spec.rb

@@ -53,7 +53,7 @@ describe NotificationService, services: true do
           add_users_with_subscription(note.project, issue)
 
           # Ensure create SentNotification by noteable = issue 6 times, not noteable = note
-          expect(SentNotification).to receive(:record).with(issue, any_args).exactly(6).times
+          expect(SentNotification).to receive(:record).with(issue, any_args).exactly(7).times
 
           ActionMailer::Base.deliveries.clear