align to checkstyle

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

@@ -71,12 +71,11 @@ public class PolarisFeignLoadBalancer extends FeignLoadBalancer {
 
 		routerContext.setLabels(PolarisRouterContext.TRANSITIVE_LABELS, MetadataContextHolder.get()
 				.getFragmentContext(MetadataContext.FRAGMENT_TRANSITIVE));
-		
+
 		Map<String, String> labelHeaderValuesMap = new HashMap<>();
-		try{
+		try {
 			String labelHeaderValuesContent = labelHeaderValues.stream().findFirst().get();
-			labelHeaderValuesMap.putAll(JacksonUtils.deserialize2Map(URLDecoder.decode(labelHeaderValuesContent, 
-					StandardCharsets.UTF_8.name())));
+			labelHeaderValuesMap.putAll(JacksonUtils.deserialize2Map(URLDecoder.decode(labelHeaderValuesContent, StandardCharsets.UTF_8.name())));
 		} catch (UnsupportedEncodingException e) {
 			throw new RuntimeException("unsupported charset exception " + StandardCharsets.UTF_8.name());
 		}

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

@@ -109,9 +109,9 @@ public class RouterLabelFeignInterceptor implements RequestInterceptor, Ordered
 			requestTemplate.header(RouterConstants.ROUTER_LABEL_HEADER);
 			return;
 		}
-		
+
 		String encodedLabelsContent;
-		try{
+		try {
 			encodedLabelsContent = URLEncoder.encode(JacksonUtils.serialize2Json(labels), StandardCharsets.UTF_8.name());
 		} catch (UnsupportedEncodingException e) {
 			throw new RuntimeException("unsupported charset exception " + StandardCharsets.UTF_8.name());

spring-cloud-starter-tencent-polaris-router/src/test/java/com/tencent/cloud/polaris/router/feign/RouterLabelFeignInterceptorTest.java

@@ -118,10 +118,10 @@ public class RouterLabelFeignInterceptorTest {
 				when(metadataLocalProperties.getContent()).thenReturn(localMetadata);
 
 				routerLabelFeignInterceptor.apply(requestTemplate);
-				
+
 				Collection<String> routerLabels = requestTemplate.headers().get(RouterConstants.ROUTER_LABEL_HEADER);
 				Map<String, String> routerLabelsMap = new HashMap<>();
-				try{
+				try {
 					String routerLabelContent = routerLabels.stream().findFirst().get();
 					routerLabelsMap.putAll(JacksonUtils.deserialize2Map(URLDecoder.decode(routerLabelContent, StandardCharsets.UTF_8.name())));
 				} catch (UnsupportedEncodingException e) {