fixed user func call to respect arguments

Author: benwalch

src/DsTrinityDataBundle/Resource/FieldTransformer/Object/ObjectRelationsGetterExtractor.php

@@ -48,7 +48,7 @@ public function transformData(string $dispatchTransformerName, ResourceContainer
                 return null;
             }
 
-            $values[] = call_user_func([$relation, $this->options['method']], $this->options['arguments']);
+            $values[] = call_user_func_array([$relation, $this->options['method']], $this->options['arguments']);
         }
 
         return $values;