The "Symfony\Component\HttpKernel\DependencyInjection\Extension" class is considered internal since Symfony 7.1, to be deprecated in 8.1; use Symfony\Component\DependencyInjection\Extension\Extension instead. It may change without further notice. You should not use it from "FOS\JsRoutingBundle\DependencyInjection\FOSJsRoutingExtension".
The "Symfony\Component\HttpKernel\DependencyInjection\Extension" class is considered internal since Symfony 7.1, to be deprecated in 8.1; use Symfony\Component\DependencyInjection\Extension\Extension instead. It may change without further notice. You should not use it from "FOS\JsRoutingBundle\DependencyInjection\FOSJsRoutingExtension".
Symfony PR: https://github.com/symfony/symfony/pull/53801