[Bug] Rocketmq namesrv解析网卡v6地址存在问题

### Before Creating the Bug Report

- [x] I found a bug, not just asking a question, which should be created in [GitHub Discussions](https://github.com/apache/rocketmq/discussions).

- [x] I have searched the [GitHub Issues](https://github.com/apache/rocketmq/issues) and [GitHub Discussions](https://github.com/apache/rocketmq/discussions) of this repository and believe that this is not a duplicate.

- [x] I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ.

### Runtime platform environment

纯单栈v6环境启动运行namesrv

### RocketMQ version

5.1.3

### JDK Version

1.8

### Describe the Bug

v6环境部署namesrv组件。日志发现解析v6地址存在问题

### Steps to Reproduce

使用bin/mqnamesrv -c /root/rocketmq-5.1.3-1/conf/namesrv.conf启动namesrv组件。发现日志报错，类似v6地址解析异常。后续broker无法注册namesrv。

### What Did You Expect to See?

应该解析得到[202:202:0:0:0:0:81:1811]:9876 这样的地址。通过 ping6 202:202:0:0:0:0:81:1811和 nc -vz -6 202:202:0:0:0:0:81:1811 9876都可以连通。

### What Did You See Instead?

createChannel: begin to connect remote host[[202:202:0:0:0:0:81:1811%enp1s0]:9876]
java.net.UnknownHostException: [202: invalid IPv6 address literal

### Additional Context

no

Reproduce the issue in a single-stack IPv6 environment by starting namesrv with bin/mqnamesrv -c /root/rocketmq-5.1.3-1/conf/namesrv.conf. Inspect the namesrv address parsing and connection path around the reported UnknownHostException and interface suffix. Done means namesrv uses a valid IPv6 address and the broker can register successfully.

Written by the indexing model from the issue text.