Fix deprecation for Symfony\Component\HttpKernel\DependencyInjection\…

…Extension (#304)

Co-authored-by: Christopher Georg <[email protected]>

src/DependencyInjection/OneupFlysystemExtension.php

@@ -11,9 +11,9 @@
 use Symfony\Component\DependencyInjection\ChildDefinition;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
+use Symfony\Component\DependencyInjection\Extension\Extension;
 use Symfony\Component\DependencyInjection\Loader;
 use Symfony\Component\DependencyInjection\Reference;
-use Symfony\Component\HttpKernel\DependencyInjection\Extension;
 
 class OneupFlysystemExtension extends Extension
 {