fix: 解决Form updateSchema后执行setProps导致schemaRef被重置的问题

[hls-1992]

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描述 Bug

在BasicForm.vue文件中有如下源码


当我们先使用updateSchema对schemas进行修改
然后使用setProps更新from的props
此时由于getProps来自props的深拷贝，props.schemas的数组引用发生变化，图中监听器必然触发，导致schemaRef被重置，
出现问题

复现 Bug

1. (https://vben.vvbin.cn/#/comp/form/useForm)以此页面为例
2. 我们可以移除字段4的选项，然后在onMounted中使用updateSchema为其传入options
3. 然后我们调用setProps修改任意formprops,我们会发现字段4没有选项
4. 移除setProps,选项出现

[hls-1992]

这样修改可以规避上述错误，且不会有其他不利影响

[wangjue666]

这样修改可以规避上述错误，且不会有其他不利影响

Thanks 👍