DX: fix phpstan errors

src/Bundle/ChillMainBundle/CRUD/Controller/ApiController.php

@@ -280,11 +280,13 @@ class ApiController extends AbstractCRUDController
         switch ($request->getMethod()) {
             case Request::METHOD_DELETE:
                 // oups... how to use property accessor to remove element ?
+                /* @phpstan-ignore-next-line as we do not find a simpler way to do this */
                 $entity->{'remove' . ucfirst($property)}($postedData);
 
                 break;
 
             case Request::METHOD_POST:
+                /* @phpstan-ignore-next-line as we do not find a simpler way to do this */
                 $entity->{'add' . ucfirst($property)}($postedData);
 
                 break;