fix(Cascader):Type issue of option[this. data. valueKey]

[TallNutAlt]

const options = [ { text: '浙江省', value: 330000, children: [{ text: '杭州市', value: 330100 }], }, { text: '江苏省', value: 320000, children: [{ text: '南京市', value: 320100 }], }, ]

如图在options数组的value为number情况下出现

[TallNutAlt]

#5913