Modernize example for SentryTestController to PHP 8 and Symfony

Since Symfony 5.2 PHP Attributes can be used instead of the old annotations. Updated also the Syntax to make the test easier.

Author: alexander-schranz

docs/platforms/php/guides/symfony/index.mdx

@@ -44,23 +44,15 @@ namespace App\Controller;
 
 use Psr\Log\LoggerInterface;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
-use Symfony\Component\Routing\Annotation\Route;
+use Symfony\Component\Routing\Attribute\Route;
 
 class SentryTestController extends AbstractController
 {
-    /**
-     * @var LoggerInterface
-     */
-    private $logger;
-
-    public function __construct(LoggerInterface $logger)
+    public function __construct(private LoggerInterface $logger)
     {
-        $this->logger = $logger;
     }
 
-    /**
-     * @Route(name="sentry_test", path="/_sentry-test")
-     */
+    #[Route('/_sentry-test', name: 'sentry_test')]
     public function testLog()
     {
         // the following code will test if monolog integration logs to sentry