Fix schedule tasks bugs (#28691)

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.

models/actions/run_list.go

@@ -10,6 +10,7 @@ import (
 	repo_model "code.gitea.io/gitea/models/repo"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/container"
+	webhook_module "code.gitea.io/gitea/modules/webhook"
 
 	"xorm.io/builder"
 )
@@ -71,6 +72,7 @@ type FindRunOptions struct {
 	WorkflowID    string
 	Ref           string // the commit/tag/… that caused this workflow
 	TriggerUserID int64
+	TriggerEvent  webhook_module.HookEventType
 	Approved      bool // not util.OptionalBool, it works only when it's true
 	Status        []Status
 }
@@ -98,6 +100,9 @@ func (opts FindRunOptions) ToConds() builder.Cond {
 	if opts.Ref != "" {
 		cond = cond.And(builder.Eq{"ref": opts.Ref})
 	}
+	if opts.TriggerEvent != "" {
+		cond = cond.And(builder.Eq{"trigger_event": opts.TriggerEvent})
+	}
 	return cond
 }