【急】cube-ui 搭配 webpack 5 普通编译 时，无法添加自定义校验（addRule失效，addMessage可以生效）

### Version
undefined

### Reproduction link
[https://codesandbox.io/s/vue](https://codesandbox.io/s/vue)

### Steps to reproduce
1.增加自定义校验
Validator.addRule('ipv4', (val) => {
return false;
});
Validator.addMessage('ipv4', () => {
return 'wrongIpAddress';
});

### What is expected?
正常生效

### What is actually happening?
不生效

### Dependencies Version
vue:
better-scroll: