鸿蒙在子线程中调用PushAgent.initCallback无效

因为在内网情况，如果在主进程中调用PushAgent.initCallback会导致卡死，所以选择在子线程中来调用 但是无法完成初始化功能。

示例代码如下：

@Concurrent
function getUMengDeviceToken(TAG:string) {
   PushAgent.initCallback((data: Record<string, string>) => {
     console.log(`getUMengDeviceToken data is ${JSON.stringify(data)}`);
   });
}


export default class EntryAbility extends RNAbility {

 onCreate(want: Want) {


   // 友盟消息推送初始化回调
   this.getTokenWithTaskpool();
 }


 async getTokenWithTaskpool() {
    try {
      LOGI(TAG, 'getUMengDeviceToken called')
      const task: taskpool.Task = new taskpool.Task(getUMengDeviceToken, TAG)
      await taskpool.execute(task)
    } catch (error) {
      const err: BusinessError = error;
      LOGI(TAG, 'getUMengDeviceToken failed: ' + err.code + ' ' + err.message);
    }
  }


}