使用 rocketmq proxy时， 客户端依旧与 docket 容器中的 broker 直接建立连接

客户端配置如下：
`rocketmq:
name-server: localhost:8080`
其中， name-server 的地址是 proxy 的地址。

报错信息为：
`2024-09-19T17:00:00.640+08:00 ERROR 28360 --- [spring-boot-rocketmq-starter] [nio-9001-exec-3] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed: org.springframework.messaging.MessagingException: Send [3] times, still failed, cost [9004]ms, Topic: test-topic-1, BrokersSent: [15cc0e42b818, 15cc0e42b818, 15cc0e42b818]
See https://rocketmq.apache.org/docs/bestPractice/06FAQ for further details.] with root cause

org.apache.rocketmq.remoting.exception.RemotingConnectException: connect to 172.18.0.4:8080 failed`