src/DependencyInjection/SyliusFlowExtension.php:33:23: UndefinedClass: Class, interface or enum named Symfony\Component\DependencyInjection\Loader\XmlFileLoader does not exist (see https://psalm.dev/019)

src/Symfony/NamespacedAttributeBag.php:42:39: ReservedWord: mixed is a reserved word (see https://psalm.dev/095)

src/Symfony/NamespacedAttributeBag.php:42:63: ReservedWord: mixed is a reserved word (see https://psalm.dev/095)

src/Symfony/NamespacedAttributeBag.php:58:39: ReservedWord: mixed is a reserved word (see https://psalm.dev/095)

src/Symfony/NamespacedAttributeBag.php:68:43: ReservedWord: mixed is a reserved word (see https://psalm.dev/095)

src/Symfony/SessionFactory.php:10:7: ParseError: Syntax error, unexpected T_STRING, expecting T_ABSTRACT or T_FINAL or T_READONLY or T_CLASS on line 10 (see https://psalm.dev/173)

src/Symfony/SessionFactory.php:10:7: UndefinedConstant: Const readonly is not defined (see https://psalm.dev/020)

Process completed with exit code 2.

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v2, actions/cache@v1. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.