Regression: Subthreshold annotations are broken

Example: https://gracedb-playground.ligo.org/superevents/S221020dd/view/

The event from which this should be copied is G743725. What happens is a previous preferred event is used G743724.

Reason: Use of preferred_event_data for tasks that involve timeout in earlywarning_preliminary_initial workflow: https://git.ligo.org/emfollow/gwcelery/-/blob/main/gwcelery/tasks/orchestrator.py#L550-551