private void setRestTemplateEncode(RestTemplate restTemplate) {
        if (null == restTemplate || ObjectUtils.isEmpty(restTemplate.getMessageConverters())) {
            return;
        }

        List<HttpMessageConverter<?>> messageConverters = restTemplate.getMessageConverters();
        for (int i = 0; i < messageConverters.size(); i++) {
            HttpMessageConverter<?> httpMessageConverter = messageConverters.get(i);
            if (httpMessageConverter.getClass().equals(StringHttpMessageConverter.class)) {
                messageConverters.set(i, new StringHttpMessageConverter(StandardCharsets.UTF_8));
            }
        }
    }
Get the timeout time of the connection from the connection pool,
and throw ConnectionPoolTimeoutException when timeout
inlong-manager/manager-service/src/test/java/org/apache/inlong/manager/service/RestTemplateConfig.java