fix: 修复 wd-upload 组件的 formData 属性的 ts 类型为 void 的问题 (#1106)

Author: quantum-rose

src/uni_modules/wot-design-uni/components/wd-upload/types.ts

@@ -215,7 +215,7 @@ export const uploadProps = {
    * 类型：object
    * 默认值：{}
    */
-  formData: { type: Object as PropType<UploadFormData>, default: () => {} },
+  formData: { type: Object as PropType<UploadFormData>, default: () => ({}) },
   /**
    * 预览失败执行操作
    * 类型：function({index,imgList})