Do not use deprecated DI Extension class

Author: emodric

bundle/DependencyInjection/NetgenEnhancedSelectionExtension.php

@@ -7,9 +7,9 @@
 use Symfony\Component\Config\FileLocator;
 use Symfony\Component\Config\Resource\FileResource;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Extension\Extension;
 use Symfony\Component\DependencyInjection\Extension\PrependExtensionInterface;
 use Symfony\Component\DependencyInjection\Loader;
-use Symfony\Component\HttpKernel\DependencyInjection\Extension;
 use Symfony\Component\Yaml\Yaml;
 
 use function array_keys;