fix(formItem): Fix labelcol type mismatch (#903)

*修复antdv升级后formItem中labelCol没有类型style的bug

src/components/Form/src/types/formItem.ts

 import type { NamePath } from 'ant-design-vue/lib/form/interface';
 import type { ColProps } from 'ant-design-vue/lib/grid/Col';
-import type { VNodeChild } from 'vue';
+import type { HTMLAttributes, VNodeChild } from 'vue';
 
 export interface FormItem {
   /**
@@ -39,7 +39,7 @@ export interface FormItem {
    * The layout of label. You can set span offset to something like {span: 3, offset: 12} or sm: {span: 3, offset: 12} same as with <Col>
    * @type Col
    */
-  labelCol?: ColProps;
+  labelCol?: ColProps & HTMLAttributes;
 
   /**
    * Whether provided or not, it will be generated by the validation rule.