fix checkstyle

Signed-off-by: wind57 <[email protected]>

Author: wind57

spring-cloud-kubernetes-discovery/src/main/java/org/springframework/cloud/kubernetes/discovery/KubernetesReactiveDiscoveryClient.java

@@ -16,9 +16,9 @@
 
 package org.springframework.cloud.kubernetes.discovery;
 
-import org.springframework.cache.annotation.Cacheable;
 import reactor.core.publisher.Flux;
 
+import org.springframework.cache.annotation.Cacheable;
 import org.springframework.cloud.client.ServiceInstance;
 import org.springframework.cloud.client.discovery.ReactiveDiscoveryClient;
 import org.springframework.cloud.kubernetes.commons.discovery.DefaultKubernetesServiceInstance;