Rector rules: add rules for 5.0 types

rector.php

@@ -33,6 +33,7 @@ return static function (RectorConfig $rectorConfig): void {
     $rectorConfig->sets([
         LevelSetList::UP_TO_PHP_82,
         \Rector\Symfony\Set\SymfonyLevelSetList::UP_TO_SYMFONY_44,
+        \Rector\Symfony\Set\SymfonySetList::SYMFONY_50_TYPES,
         \Rector\Doctrine\Set\DoctrineSetList::DOCTRINE_CODE_QUALITY,
         \Rector\PHPUnit\Set\PHPUnitLevelSetList::UP_TO_PHPUNIT_90,
     ]);