Merge branch 'use-rspec-support-helper' into 'master'

spec/models/ci/pipeline_spec.rb

spec/models/deploy_key_spec.rb

spec/models/gpg_key_spec.rb

spec/models/key_spec.rb

spec/models/project_services/pipelines_email_service_spec.rb

spec/requests/api/issues_spec.rb

spec/requests/api/v3/issues_spec.rb

spec/services/issues/update_service_spec.rb

spec/services/merge_requests/update_service_spec.rb

spec/services/notification_service_spec.rb

spec/support/notify_shared_examples.rb

spec/support/updating_mentions_shared_examples.rb

spec/workers/emails_on_push_worker_spec.rb

spec/workers/pipeline_notification_worker_spec.rb