传运单接口follow_waybill是否支持查询邮政包裹信件，目前测试的几个邮政号都是运单不存在
{"errcode":931023,"errmsg":"waybill not exist detail: [运单不存在] rid: 63bfc8a4-1cc6a038-15e539a1"} https://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/industry/express/business/express_open_msg.htmlhttps://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/industry/express/business/express_open_msg.html
