Use PHP native Attributes wherever possible

[lukaszuznanski]

Use PHP native Attributes wherever possible along Services.php

[oliverklee]

For PHPUnit, this is the rector.php (from https://forge.typo3.org/issues/103180):

<?php

declare(strict_types=1);

use Rector\Config\RectorConfig;
use Rector\PHPUnit\Set\PHPUnitSetList;

return RectorConfig::configure()
    ->withSets([
        PHPUnitSetList::ANNOTATIONS_TO_ATTRIBUTES,
    ])
    ->withImportNames(importShortClasses: false)
    ->withoutParallel();