add 媒体设备刷新通道

jetlinks-manager/media-manager/src/main/java/org/jetlinks/community/media/controller/MediaDeviceController.java

@@ -164,7 +164,7 @@ public class MediaDeviceController implements ReactiveServiceCrudController<Medi
                 if (DeviceState.offline==device.getState()) {
                     return Mono.error(new BusinessException("设备已离线，无法更新通道最新信息"));
                 }
-                return messageBroker.handleReply(id,key,Duration.ofSeconds(10))
+                return messageBroker.handleReply(id,key,Duration.ofSeconds(30))
                     .onErrorResume(DeviceOperationException.class,error-> {
                         //设备下线
                         mediaDeviceService.deviceOffline(device);

jetlinks-manager/media-manager/src/main/java/org/jetlinks/community/media/zlm/dto/MediaItem.java

@@ -98,7 +98,8 @@ public class MediaItem implements Serializable {
      */
     private boolean docker;
 
-    public static class MediaTrack {
+    public static class MediaTrack implements Serializable{
+        private static final Long serialVersionUID=1L;
         /**
          * 音频通道数
          */