align to checkstyle checks

spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/feign/RouterLabelFeignInterceptor.java

@@ -110,7 +110,7 @@ public class RouterLabelFeignInterceptor implements RequestInterceptor, Ordered
 			requestTemplate.header(RouterConstants.ROUTER_LABEL_HEADER);
 			return;
 		}
-		
+
 		String encodedLabelsContent;
 		try {
 			encodedLabelsContent = URLEncoder.encode(JacksonUtils.serialize2Json(labels), StandardCharsets.UTF_8.name());

spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/resttemplate/PolarisLoadBalancerInterceptor.java

@@ -20,8 +20,8 @@ package com.tencent.cloud.polaris.router.resttemplate;
 
 import java.io.IOException;
 import java.io.UnsupportedEncodingException;
-import java.net.URLEncoder;
 import java.net.URI;
+import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 import java.util.Collections;
 import java.util.Comparator;