Increase php8.1 compatibility #36
Description
When using Statusengine with php 8.1 there are some deprecated messages popping up here and there.
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 /opt/openitc/statusengine3/worker/vendor/symfony/console/Helper/HelperSet.php on line 104