事务异常检查间隔5.x已经从60s改成了30s

[asjfoajs]

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BUG REPORT

Please describe the issue you observed: 事务异常检查间隔 | 默认值：60秒。

• What did you expect to see? 事务异常检查间隔 | 默认值：30秒。

查看源码4.x 查看源码5.x 所以将这里从60->30

[asjfoajs]

https://github.com/apache/rocketmq-site/pull/638