[fix] 优化负载获取可以使用的客户端

wu-lazy-cloud-heartbeat-common/src/main/java/org/framework/lazy/cloud/network/heartbeat/common/ChannelContext.java

@@ -11,6 +11,7 @@ import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
+import java.util.stream.Collectors;
 
 /**
  * 通道上下文
@@ -117,6 +118,7 @@ public class ChannelContext {
         if(ObjectUtils.isEmpty(channels)){
             return null;
         }
+        channels = channels.stream().filter(Channel::isActive).collect(Collectors.toList());
         return channels.get(0);
     }