update script/libs/aliyun.lua,修复库中注释的示例代码qos顺序与payload顺序错误

Signed-off-by: fantasygm <8637583+fantasygm@user.noreply.gitee.com>

script/libs/aliyun.lua

@@ -379,8 +379,8 @@ end
 @param[opt=nil] cbPara，消息发布结果回调函数的回调参数
 @return nil
 @usage
-aliyun.publish("/b0FMK1Ga5cp/862991234567890/update","test",0)
-aliyun.publish("/b0FMK1Ga5cp/862991234567890/update","test",1,cbFnc,"cbFncPara")
+aliyun.publish("/b0FMK1Ga5cp/862991234567890/update",0,"test")
+aliyun.publish("/b0FMK1Ga5cp/862991234567890/update",1,"test",cbFnc,"cbFncPara")
 ]]
 function aliyun.publish(topic,qos,payload,cbFnc,cbPara)
     insert("PUBLISH",topic,qos,payload,cbFnc,cbPara)