scheduler: Fix field apiVersion is missing from events reported from taint manager

Signed-off-by: aimuz <mr.imuz@gmail.com>

pkg/controller/nodelifecycle/scheduler/taint_manager.go

@@ -514,6 +514,7 @@ func (tc *NoExecuteTaintManager) emitPodDeletionEvent(nsName types.NamespacedNam
 		return
 	}
 	ref := &v1.ObjectReference{
+		APIVersion: "v1",
 		Kind:       "Pod",
 		Name:       nsName.Name,
 		Namespace:  nsName.Namespace,
@@ -526,6 +527,7 @@ func (tc *NoExecuteTaintManager) emitCancelPodDeletionEvent(nsName types.Namespa
 		return
 	}
 	ref := &v1.ObjectReference{
+		APIVersion: "v1",
 		Kind:       "Pod",
 		Name:       nsName.Name,
 		Namespace:  nsName.Namespace,