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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)


if (!register) {
            url = url.addParameter(REGISTER_KEY, false);
        }
        Invoker<?> invoker = proxyFactory.getInvoker(ref, (Class) interfaceClass, url);
        if (withMetaData) {
            invoker = new DelegateProviderMetaDataInvoker(invoker, this);
        }
        Exporter<?> exporter = protocolSPI.export(invoker);
        exporters.add(exporter);
    }
    /**
     * always export injvm
     */
    private void exportLocal(URL url) {
        URL local = URLBuilder.from(url)
            .setProtocol(LOCAL_PROTOCOL)
            .setHost(LOCALHOST_VALUE)
            .setPort(0)
            .build();
        local = local.setScopeModel(getScopeModel())
            .setServiceModel(providerModel);
        local = local.addParameter(EXPORTER_LISTENER_KEY, LOCAL_PROTOCOL);
        doExportUrl(local, false, true);
        logger.info("Export dubbo service " + interfaceClass.getName() + " to local registry url : " + local);
    }
    /**
     * Determine if it is injvm
     *
     * @return
     */