PHP 8.1 uses HTML parsing functions in other way #41
Description
See: https://www.php.net/manual/en/function.htmlspecialchars.php and https://www.php.net/html_entity_decode and https://www.php.net/manual/de/migration81.incompatible.php
8.1.0 | flags changed from ENT_COMPAT to ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401.
https://github.com/sofort/sofortlib-php/blob/master/src/Sofort/SofortLib/Xml/Element/Text.php#L44 and https://github.com/sofort/sofortlib-php/blob/master/src/Sofort/SofortLib/Xml/XmlToArray.php#L169 and https://github.com/sofort/sofortlib-php/blob/master/src/Sofort/SofortLib/Xml/XmlToArray.php#L167