chore: Object.assign => extend

packages/uni-app-plus/src/helpers/plus.ts

+import { extend } from '@vue/shared'
 interface PlusResult extends Record<string, any> {
   code?: number
   message?: string
@@ -28,6 +29,6 @@ export function warpPlusErrorCallback(
     // 一键登录errorCallback新增 appid、metadata、uid 参数返回
     errMsg = error.message || errMsg || ''
     delete error.message
-    reject(errMsg, Object.assign({ code: 0 }, error))
+    reject(errMsg, extend({ code: 0 }, error))
   }
 }

packages/uni-app-plus/src/service/api/file/getFileInfo.ts

+import { extend } from '@vue/shared'
 import {
   defineAsyncApi,
   API_GET_FILE_INFO,
@@ -14,7 +15,7 @@ export const getFileInfo = <API_TYPE_GET_FILE_INFO>defineAsyncApi(
   API_GET_FILE_INFO,
   (options, { resolve, reject }) => {
     plus.io.getFileInfo(
-      Object.assign(options, {
+      extend(options, {
         success: warpPlusSuccessCallback(resolve),
         fail: warpPlusErrorCallback(reject),
       })