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

### Environment

* Dubbo version: 3.1.11
* Operating System version: MAC
* Java version: 1.8

### Steps to reproduce this issue

1. 使用3.1.11的版本定义一个接口提供服务，接口中包含相同名字不同参数的X个方法，那么在provider的url上methods参数就会有多个重复的方法名
2. 在2.6.x的consumer端引用该服务时，methodInvokerMap会根据相同方法名存放X个重复invoker地址，如果默认使用random负载均衡，相当于该provider有着X倍的权重一样，压力会是X倍
3. 在刚升dubbo3的时候，如果一台机器收到的流量是其他机器的X倍，可能压力较大会有风险

![duplicate](https://github.com/apache/dubbo/assets/3276231/fa4c2aab-e13c-4bd8-8b8a-3bfada07175c)
![addMap](https://github.com/apache/dubbo/assets/3276231/79b59170-020a-482e-82e2-0ebd6e162d67)


Pls. provide [GitHub address] to reproduce this issue.

### Expected Behavior

在生成provider url的methods参数时，去掉重复的方法名

### Actual Behavior

同名不同参数的方法名，会在url上生成多次

红圈中是灰度发布一台的重复现象
![methods](https://github.com/apache/dubbo/assets/3276231/6c27459e-dc1b-4ad8-b1bf-57c51115c4d8)


try {
                    doExport(register);
                } catch (Exception e) {
                    logger.error(CONFIG_FAILED_EXPORT_SERVICE, "configuration server disconnected", "", "Failed to (async)export service config: " + interfaceName, e);
                }
            }, getDelay(), TimeUnit.MILLISECONDS);
    }
    protected void exported() {
        exported = true;
        List<URL> exportedURLs = this.getExportedUrls();
        exportedURLs.forEach(url -> {
            if (url.getParameters().containsKey(SERVICE_NAME_MAPPING_KEY)) {
                ServiceNameMapping serviceNameMapping = ServiceNameMapping.getDefaultExtension(getScopeModel());
                ScheduledExecutorService scheduledExecutor = getScopeModel().getBeanFactory()
                    .getBean(FrameworkExecutorRepository.class).getSharedScheduledExecutor();
                mapServiceName(url, serviceNameMapping, scheduledExecutor);
            }
        });
        onExported();
    }
    protected void mapServiceName(URL url, ServiceNameMapping serviceNameMapping, ScheduledExecutorService scheduledExecutor) {
        if (!exported) {
            return;
        }
        logger.info("Try to register interface application mapping for service " + url.getServiceKey());
        boolean succeeded = false;
        try {
            succeeded = serviceNameMapping.map(url);
            if (succeeded) {
                logger.info("Successfully registered interface application mapping for service " + url.getServiceKey());