Reschedule_once duplication strategy for EntityWorker

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/135786



Merged-by: Stan Hu <stanhu@gmail.com>
Approved-by: Janis Altherr <jaltherr@gitlab.com>
Approved-by: Stan Hu <stanhu@gmail.com>
Co-authored-by: Max Fan <mfan@gitlab.com>