[Console] PHP 8.1 deprecation notice for HelperSet::getIterator() #42199
Description
From https://github.com/sebastianbergmann/phpunit/runs/3111696987:
PHP Deprecated: Return type of Symfony\Component\Console\Helper\HelperSet::getIterator()
should either be compatible with IteratorAggregate::getIterator(): Traversable,
or the #[ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
in phar:///home/runner/work/phpunit/phpunit/tools/composer/vendor/symfony/console/Helper/HelperSet.php on line 112