fix unit tests

Author: Rafael Marinho

src/main/java/io/getstream/chat/java/models/MarkDeliveredOptions.java

@@ -33,6 +33,7 @@ public static class MarkDeliveredResponse extends StreamResponseObject {}
 
   public static class MarkDeliveredRequest extends StreamRequest<MarkDeliveredResponse> {
     private MarkDeliveredOptions options;
+    private String userId;
 
     public MarkDeliveredRequest() {}
 
@@ -55,7 +56,7 @@ public MarkDeliveredRequest userId(String userId) {
 
     @Override
     protected Call<MarkDeliveredResponse> generateCall(Client client) {
-      return client.create(ChannelService.class).markChannelsDelivered(options);
+      return client.create(ChannelService.class).markChannelsDelivered(options, userId);
     }
   }
 

src/main/java/io/getstream/chat/java/services/ChannelService.java

@@ -107,5 +107,6 @@ Call<ChannelMemberResponse> updateMemberPartial(
 
   @POST("channels/delivered")
   Call<MarkDeliveredOptions.MarkDeliveredResponse> markChannelsDelivered(
-      @NotNull @Body MarkDeliveredOptions markDeliveredOptions);
+      @NotNull @Body MarkDeliveredOptions markDeliveredOptions,
+      @NotNull @Query("user_id") String userId);
 }