Fix the right predictions api operation method

Author: tadayosi

src/main/java/com/github/tadayosi/torchserve/client/impl/DefaultInference.java

@@ -54,7 +54,8 @@ public Response ping() throws ApiException {
     @Override
     public Object predictions(String modelName, Object body) throws ApiException {
         try {
-            return api.predictions(body, modelName);
+            // /predictions/{model_name}
+            return api.predictions_1(body, modelName);
         } catch (com.github.tadayosi.torchserve.client.inference.invoker.ApiException e) {
             throw new ApiException(e);
         }