v1.9.1 - Fix test suite for PHP 8.1 and 8.2

This release does not add new functionality.

What's Changed

• Add PHP 8.1 and PHP 8.2 test support by @rvanlaak in #87
• Fix twig cve for 1.x branch by @rvanlaak in #86

Full Changelog: v1.9.0...v1.9.1