message: feat(plugins/pagerduty): add constant for service id annotation
  annotation: 'pagerduty.com/service-id'
diff: * limitations under the License.
  */
  export const PAGERDUTY_INTEGRATION_KEY = 'pagerduty.com/integration-key';
  +export const PAGERDUTY_SERVICE_ID = 'pagerduty.com/service-id';
  