Fix tests for low dependency versions of Twig

Author: sneakyvv

src/TwigComponent/src/ComponentRenderer.php

@@ -11,6 +11,7 @@
 
 namespace Symfony\UX\TwigComponent;
 
+use Composer\InstalledVersions;
 use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
 use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
 use Symfony\UX\TwigComponent\Attribute\ExposeInTemplate;
@@ -58,6 +59,10 @@ public function render(MountedComponent $mounted): string
         $event = $this->preRender($mounted);
 
         try {
+            if (InstalledVersions::getVersion('twig/twig') < 3) {
+                return $this->twig->loadTemplate($event->getTemplate(), $event->getTemplateIndex())->render($event->getVariables());
+            }
+
             return $this->twig->loadTemplate(
                 $this->twig->getTemplateClass($event->getTemplate()),
                 $event->getTemplate(),