Unable to get vulnerability notifications in Red Hat Quay

Issue

• Configuring notifications for events like push to registry works fine, but notifications in event of vulnerability found does not work:

  notificationworker stdout | 2024-06-05 10:30:02,489 [68] [ERROR] [workers.worker] Operation raised exception
  notificationworker stdout | Traceback (most recent call last):
  notificationworker stdout |   File "/quay-registry/workers/worker.py", line 86, in _operation_func
  notificationworker stdout |     return operation_func()
  notificationworker stdout |   File "/quay-registry/workers/queueworker.py", line 134, in poll_queue
  notificationworker stdout |     self.process_queue_item(job_details)
  notificationworker stdout |   File "/quay-registry/workers/notificationworker/notificationworker.py", line 45, in process_queue_item
  notificationworker stdout |     raise exc
  notificationworker stdout |   File "/quay-registry/workers/notificationworker/notificationworker.py", line 41, in process_queue_item
  notificationworker stdout |     method_handler.perform(notification, event_handler, job_details)
  notificationworker stdout |   File "/quay-registry/notifications/notificationmethod.py", line 179, in perform
  notificationworker stdout |     event_handler.get_summary(notification_data["event_data"], notification_data),
  notificationworker stdout |   File "/quay-registry/notifications/notificationevent.py", line 250, in get_summary
  notificationworker stdout |     len(event_data["tags"]),
  notificationworker stdout | KeyError: 'tags'