update code to work with Symfony 5

Author: MasaakiYoshida

src/DependencyInjection/Configuration.php

@@ -23,8 +23,8 @@ class Configuration implements ConfigurationInterface
      */
     public function getConfigTreeBuilder()
     {
-        $treeBuilder = new TreeBuilder();
-        $treeBuilder->root('phpmentors_proxy_url_rewrite')
+        $treeBuilder = new TreeBuilder('phpmentors_proxy_url_rewrite');
+        $treeBuilder->getRootNode()
             ->canBeEnabled()
             ->fixXmlConfig('proxy_url')
             ->children()

src/EventListener/ProxyUrlRewriteListener.php

@@ -14,6 +14,7 @@
 
 use PHPMentors\ProxyURLRewriteBundle\ProxyUrl\ProxyUrlMatcher;
 use Symfony\Component\HttpKernel\Event\GetResponseEvent;
+use Symfony\Component\HttpKernel\Event\RequestEvent;
 use Symfony\Component\HttpKernel\HttpKernelInterface;
 use Symfony\Component\Routing\RouterInterface;
 
@@ -50,9 +51,9 @@ public function setRouter(RouterInterface $router)
     }
 
     /**
-     * @param GetResponseEvent $event
+     * @param RequestEvent $event
      */
-    public function onKernelRequest(GetResponseEvent $event)
+    public function onKernelRequest(RequestEvent $event)
     {
         if ($event->getRequestType() == HttpKernelInterface::MASTER_REQUEST) {
             $matchedProxyUrl = $this->proxyUrlMatcher->match($this->router->getContext()->getPathInfo());