Ignore empty repo for CreateRepository in action notifier (#29416) (#29424)

Backport #29416 by @yp05327

Fix #29415

Co-authored-by: yp05327 <576951401@qq.com>

services/actions/notifier_helper.go

@@ -113,6 +113,9 @@ func notify(ctx context.Context, input *notifyInput) error {
 		log.Debug("ignore executing %v for event %v whose doer is %v", getMethod(ctx), input.Event, input.Doer.Name)
 		return nil
 	}
+	if input.Repo.IsEmpty {
+		return nil
+	}
 	if unit_model.TypeActions.UnitGlobalDisabled() {
 		if err := actions_model.CleanRepoScheduleTasks(ctx, input.Repo); err != nil {
 			log.Error("CleanRepoScheduleTasks: %v", err)