Remove deprecation linked to kernel shutdown

src/Bundle/ChillAsideActivityBundle/src/Tests/Controller/AsideActivityControllerTest.php

@@ -14,6 +14,7 @@ namespace Chill\AsideActivityBundle\Tests\Controller;
 use Chill\AsideActivityBundle\Entity\AsideActivity;
 use Chill\MainBundle\Test\PrepareClientTrait;
 use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Bundle\FrameworkBundle\KernelBrowser;
 use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
 use function array_pop;
 use function shuffle;
@@ -26,10 +27,10 @@ final class AsideActivityControllerTest extends WebTestCase
 {
     use PrepareClientTrait;
 
+    private KernelBrowser $client;
+
     protected function setUp(): void
     {
-        parent::setUp();
-        self::bootKernel();
         $this->client = $this->getClientAuthenticated();
     }
 
@@ -57,6 +58,8 @@ final class AsideActivityControllerTest extends WebTestCase
         yield [array_pop($asideActivityIds)['id']];
 
         yield [array_pop($asideActivityIds)['id']];
+
+        self::ensureKernelShutdown();
     }
 
     /**