PHP Deprecated: Return type of ZBateson\MailMimeParser\Stream\HeaderStream::update(SplSubject $subject) should either be compatible with SplObserver::update(SplSubject $subject): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/runner/work/mobilityshop-api/mobilityshop-api/vendor/zbateson/mail-mime-parser/src/Stream/HeaderStream.php on line 51
Still missing in HeaderStream.
Got following message in our unit testing code: