minor symfony#53112 [HttpKernel] Fix ArgumentResolverTest (smnandre)

This PR was submitted for the 7.1 branch but it was merged into the 6.4 branch instead.

Discussion
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[HttpKernel] Fix ArgumentResolverTest

| Q             | A
| ------------- | ---
| Branch?       | 7.1
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Issues        | Fix #...
| License       | MIT

Fix CI failing

Commits
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12014a6 [HttpKernel] Fix ArgumentResolverTest

Author: xabbuh

src/Symfony/Component/HttpKernel/Tests/Controller/ArgumentResolverTest.php

@@ -328,7 +328,7 @@ public function testTargetedResolverWithRequestAttributeValue()
 
         $request = Request::create('/');
         $request->attributes->set('foo', $object = new Post('Random '.time()));
-        $controller = $this->controllerTargetingResolverWithTestEntity(...);
+        $controller = (new ArgumentResolverTestController())->controllerTargetingResolverWithTestEntity(...);
 
         $this->assertSame([$object], $resolver->getArguments($request, $controller));
     }