[FEATURE] ZhipuAiChatModel does NOT support PROXY

[andrew219219]

Is your feature request related to a problem? Please describe.

ZhipuAiChatModel cannot be used in office environments where accessing the public network requires a proxy.

Describe the solution you'd like

The OkHttp lib has many properties including proxy\timeout\log\auth, but it can't be set when creating ZhipuAiChatModel. I think more properties will be added to ZhipuAiChatModel's contructor is a good idea to solve this problem.

Describe alternatives you've considered

Additional context

// constructor of ZhipuAiChatModel
@Builder
    public ZhipuAiChatModel(
            String baseUrl,
            String apiKey,
            Double temperature,
            Double topP,
            String model,
            Integer maxRetries,
            Integer maxToken,
            Boolean logRequests,
            Boolean logResponses    // PROXY(and timeout properties) CAN BE ADDED HERE!
    ) {
        this.baseUrl = getOrDefault(baseUrl, "https://open.bigmodel.cn/");
        this.temperature = getOrDefault(temperature, 0.7);
        this.topP = topP;
        this.model = getOrDefault(model, ChatCompletionModel.GLM_4.toString());
        this.maxRetries = getOrDefault(maxRetries, 3);
        this.maxToken = getOrDefault(maxToken, 512);
        this.client = ZhipuAiClient.builder()
                .baseUrl(this.baseUrl)
                .apiKey(apiKey)
                .logRequests(getOrDefault(logRequests, false))
                .logResponses(getOrDefault(logResponses, false))
                .build();
}
// constructor of ZhipuAiClient
public ZhipuAiClient(Builder builder) {
        this.baseUrl = builder.baseUrl;
        OkHttpClient.Builder okHttpClientBuilder = new OkHttpClient.Builder()
                .callTimeout(builder.callTimeout)
                .connectTimeout(builder.connectTimeout)
                .readTimeout(builder.readTimeout)
                .writeTimeout(builder.writeTimeout)
                .addInterceptor(new AuthorizationInterceptor(builder.apiKey)); // PROXY CAN BE ADDED HERE!

        if (builder.logRequests) {
            okHttpClientBuilder.addInterceptor(new RequestLoggingInterceptor());
        }

        this.logResponses = builder.logResponses;
        if (builder.logResponses) {
            okHttpClientBuilder.addInterceptor(new ResponseLoggingInterceptor());
        }

        this.okHttpClient = okHttpClientBuilder.build();
        Retrofit retrofit = (new Retrofit.Builder())
                .baseUrl(formattedUrlForRetrofit(this.baseUrl))
                .client(this.okHttpClient)
                .addConverterFactory(GsonConverterFactory.create(GSON))
                .build();
        this.zhipuAiApi = retrofit.create(ZhipuAiApi.class);
    }