ensure kernel shutdown between client creations

src/Bundle/ChillPersonBundle/Tests/Controller/RelationshipApiControllerTest.php

@@ -112,6 +112,7 @@ final class RelationshipApiControllerTest extends WebTestCase
      */
     public function testGetRelationshipByPerson(mixed $personId)
     {
+        self::ensureKernelShutdown();
         $client = $this->getClientAuthenticated();
         $client->request(Request::METHOD_GET, sprintf('/api/1.0/relations/relationship/by-person/%d.json', $personId));