This actually:
- introduces a new swh-worker-recurring@.service (which wraps the call to celery without --events.)
- keep the old swh-worker@.service (which wraps as before celery and still uses the --events)
- Move the swh-worker@<service> definitions to link to the swh-worker-recurring@.service. All services with their send_task_events set to False
Relevant workers that still needs to send events are:
- save code now (swh-worker@loader_high_priority)
- vault
- indexer
- lister
Related to D6408#166956