This function is now being used elsewhere and cannot be reverted. Only
the part that was modified in addition to being moved is deleted.
(cherry picked from commit 72954836a492f552ccc03250ba560951eedc199d)
(cherry picked from commit 86f4d1871e5605c1592cb83b178f8ebe69ccdfa8)
(cherry picked from commit 8089076ee2434a5f8b0abc11c0c06b5425fb7c14)
In #28691, schedule plans will be deleted when a repo's actions unit is
disabled. But when the unit is enabled, the schedule plans won't be
created again.
This PR fixes the bug. The schedule plans will be created again when the
actions unit is re-enabled
Fix #28157
This PR fix the possible bugs about actions schedule.
## The Changes
- Move `UpdateRepositoryUnit` and `SetRepoDefaultBranch` from models to
service layer
- Remove schedules plan from database and cancel waiting & running
schedules tasks in this repository when actions unit has been disabled
or global disabled.
- Remove schedules plan from database and cancel waiting & running
schedules tasks in this repository when default branch changed.
