Refactor deletion (#28610)

Introduce the new generic deletion methods
- `func DeleteByID[T any](ctx context.Context, id int64) (int64, error)`
- `func DeleteByIDs[T any](ctx context.Context, ids ...int64) error`
- `func Delete[T any](ctx context.Context, opts FindOptions) (int64,
error)`

So, we no longer need any specific deletion method and can just use
the generic ones instead.

Replacement of #28450

Closes #28450

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

models/actions/runner.go

@@ -254,7 +254,7 @@ func DeleteRunner(ctx context.Context, id int64) error {
 		return err
 	}
 
-	_, err := db.GetEngine(ctx).Delete(&ActionRunner{ID: id})
+	_, err := db.DeleteByID[ActionRunner](ctx, id)
 	return err
 }