fix: update CRUD routing controller syntax

- Replace `:` with `::` for `_controller` to align with modern Symfony standards

src/Bundle/ChillMainBundle/CRUD/Routing/CRUDRoutesLoader.php

@@ -182,7 +182,7 @@ class CRUDRoutesLoader extends Loader
     {
         $localPath = $action['path'].'.{_format}';
         $defaults = [
-            '_controller' => $controller.':'.($action['controller_action'] ?? 'entityPost'),
+            '_controller' => $controller.'::'.($action['controller_action'] ?? 'entityPost'),
         ];
         $path = $crudConfig['base_path'].$localPath;
         $requirements = $action['requirements'] ?? [];