chore: fix ci (#2343)

| Q | A |

|---------------|---------------------------------------------------------------------------------------------------------------------------|
| Bug fix? | no |
| New feature? | no <!-- please update src/**/CHANGELOG.md files --> |
| Deprecations? | no <!-- please update UPGRADE-*.md and
src/**/CHANGELOG.md files --> |
| Issues | Fix #... <!-- prefix each issue number with "Fix #", no need
to create an issue if none exists, explain below instead --> |

<!--
Replace this notice by a description of your feature/bugfix.
This will help reviewers and should be a good start for the
documentation.

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 - Always add tests and ensure they pass.
- For new features, provide some code snippets to help understand usage.
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Trying to get a green build again. Apparently it started failing
somewhen between August and September. Not checking in composer.lock is
risky, especially with tooling like PHPStan this can break any time :/

also: composer.json says php >= 7.4 but there are PHP 8+ features in the
code like named properties?

.php-cs-fixer.dist.php

@@ -20,5 +20,6 @@
 file that was distributed with this source code.
 HEADER
         ],
+        'trailing_comma_in_multiline' => false,
     ])
     ->setFinder($finder);

tests/Functional/ControllerTest.php

@@ -14,7 +14,6 @@
 use OpenApi\Annotations as OA;
 use Symfony\Component\HttpKernel\Attribute\MapRequestPayload;
 use Symfony\Component\HttpKernel\Kernel;
-use Symfony\Component\HttpKernel\KernelInterface;
 use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
 
 /**
@@ -30,16 +29,6 @@ final class ControllerTest extends WebTestCase
     protected function setUp(): void
     {
         $this->configurableContainerFactory = new ConfigurableContainerFactory();
-
-        static::createClient([], ['HTTP_HOST' => 'api.example.com']);
-    }
-
-    /**
-     * @param array<mixed> $options
-     */
-    protected static function createKernel(array $options = []): KernelInterface
-    {
-        return new NelmioKernel([], null, []);
     }
 
     protected function getOpenApiDefinition(string $area = 'default'): OA\OpenApi