Update dependencies to Symfony 7.0 final

Author: javiereguiluz

composer.json

@@ -49,8 +49,8 @@
         "twig/markdown-extra": "^3.3"
     },
     "require-dev": {
-        "dama/doctrine-test-bundle": "^8.0.0-beta5",
-        "doctrine/doctrine-fixtures-bundle": "4.0.x-dev",
+        "dama/doctrine-test-bundle": "^8.0.0",
+        "doctrine/doctrine-fixtures-bundle": "^3.5",
         "phpstan/extension-installer": "^1.2",
         "phpstan/phpstan": "^1.2",
         "phpstan/phpstan-doctrine": "^1.3",

composer.lock

@@ -29,13 +29,11 @@ abstract class AbstractCommandTest extends KernelTestCase
      */
     protected function executeCommand(array $arguments, array $inputs = []): CommandTester
     {
-        self::bootKernel();
+        $kernel = self::bootKernel();
 
         // this uses a special testing container that allows you to fetch private services
         /** @var Command $command */
         $command = static::getContainer()->get($this->getCommandFqcn());
-        /** @var KernelInterface $kernel */
-        $kernel = self::$kernel;
         $command->setApplication(new Application($kernel));
 
         $commandTester = new CommandTester($command);