使用http代理时且需认证时，http客户端认证头设置错误 #3515

clientBuilder.authenticator(new Authenticator() {
                public Request authenticate(Route route, Response response) throws IOException {
                    String credential = Credentials.basic(WxMpServiceOkHttpImpl.this.httpProxy.getProxyUsername(), WxMpServiceOkHttpImpl.this.httpProxy.getProxyPassword());
                    return response.request().newBuilder().header("Authorization", credential).build();
                }
            });

Tinyproxy 默认情况下 ​不支持直接修改认证请求头（如 Proxy-Authorization）的名称或格式，其认证机制严格遵循 HTTP 协议标准。以下是详细分析和替代方案：

​1. Tinyproxy 的认证头固定性
​标准协议约束​
Tinyproxy 的认证流程基于 HTTP 协议规范，使用固定的请求头和响应头：

代理要求认证时返回：Proxy-Authenticate: Basic realm="..."
客户端提交凭证时携带：Proxy-Authorization: Basic <credentials>

me.chanjar.weixin.common.error.WxRuntimeException: java.io.IOException: Failed to authenticate with proxy
	at me.chanjar.weixin.mp.api.impl.BaseWxMpServiceImpl.getAccessToken(BaseWxMpServiceImpl.java:287)
	at me.chanjar.weixin.mp.api.impl.BaseWxMpServiceImpl.executeInternal(BaseWxMpServiceImpl.java:471)
	at me.chanjar.weixin.mp.api.impl.BaseWxMpServiceImpl.execute(BaseWxMpServiceImpl.java:435)
	at me.chanjar.weixin.mp.api.impl.BaseWxMpServiceImpl.post(BaseWxMpServiceImpl.java:383)
	at me.chanjar.weixin.mp.api.impl.BaseWxMpServiceImpl.post(BaseWxMpServiceImpl.java:398)
	at me.chanjar.weixin.mp.api.impl.WxMpFreePublishServiceImpl.getPublicationRecords(WxMpFreePublishServiceImpl.java:64)
	at me.chanjar.weixin.mp.api.impl.WxMpFreePublishServiceImpl.getPublicationRecords(WxMpFreePublishServiceImpl.java:70)
	at cn.iocoder.yudao.module.mp.controller.admin.news.MpFreePublishController.getFreePublishPage(MpFreePublishController.java:55)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:355)