Remove deprecated ReflectionProperty::setAccessible() calls

setAccessible() has no effect since PHP 8.1 and is deprecated in PHP 8.5.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: keithbrink

src/Testing/SimpleHydrator.php

@@ -25,7 +25,6 @@ private static function hydrateReflection(ReflectionClass $reflection, object $i
     {
         if ($reflection->hasProperty($field)) {
             $property = $reflection->getProperty($field);
-            $property->setAccessible(true);
             $property->setValue($instance, $value);
         } else {
             $parent = $reflection->getParentClass();

tests/Feature/EntityManagerFactoryTest.php

@@ -695,8 +695,6 @@ public function testPhpFileCacheCustomPath(): void
 
         $reflectionCache   = new ReflectionObject($metadataCache);
         $directoryProperty = $reflectionCache->getProperty('directory');
-        $directoryProperty->setAccessible(true);
-
         $this->assertStringContainsString('tests/cache', $directoryProperty->getValue($metadataCache));
         rmdir(__DIR__ . '/../cache/doctrine-cache');
     }

tests/Feature/Notifications/NotificationTest.php

@@ -48,7 +48,6 @@ public function testClassFunctions(): void
 
         $reflection = new ReflectionClass($entity);
         $property   = $reflection->getProperty('id');
-        $property->setAccessible(true);
         $property->setValue($entity, 1);
 
         $entity->getId();