Fix crash: use cocostudio gui editor, create a action in editor, when you play like:
	auto _action = getActionByName("action_name");
        _action->play(CallFunc::create([](){
		CCLOG("done.");
        }));
It'll crash.
just unschedule, no need release here.
Merge pull request #6616 from xhcnb/fix_callback

Fix crash: use cocostudio gui editor, create a action in editor, when yo...