地址：系统地址/RoadFlowOpenApi/FlowTask/GetGroupTasks

参数：

    token：接口系统token

    groupId：实例组id

返回：

  {
      code:0,//0-成功
      msg:'',//错误时的错误信息
      data:[
           {
                id: "502979293458501",//任务id
                prevId: "502106092326981",//上一个任务id
                flowId: "500969650585669",//流程id
                flowName: "TEST",//流程名称
                flowVersionId: "500969964912709",//流程版本id
                prevStepId: "502106092326981",//上一步骤id
                stepId: "500969624105029",//步骤id
                stepName: "步骤",//步骤名称
                groupId: "502103684067398",//实例组id
                instanceId: "502103684104261",//实例id（业务数据id）
                title: "ffff",//任务标题
                senderId: "430910218895429",//发送人id
                senderName: "张刚",//发送人姓名
                receiverId: "430910218895429",//接收人id
                receiverName: "张刚",//接收人姓名
                receiveTime: "2024-01-11 08:48:01",//接收时间
                completeTime: "",//任务要求完成时间
                type: 4,//任务类型  0常规 1指派 2委托 3转交 4退回 5抄送 6前加签 8并签 9跳转 10自由发送 11征求意见
           }
          ]
  }