Incorrect routing via /config/routes.php in symfony 6.1

Question

When I am defining routes in config/routes.php then those routes are not working in symfony 6.1

use App\Controller\BlogController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;

return function (RoutingConfigurator $routes) {
   $routes->add('blog_list', '/blog/{page}') 
       ->controller([BlogController::class, 'list']) 
       ->defaults(['page' => 1])
       ->requirements(['page' => '\d+']);
};