Enhancement: Add support for PHP 8.5

Author: localheinz

CHANGELOG.md

@@ -8,6 +8,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 For a full diff see [`2.20.0...main`][2.20.0...main].
 
+### Added
+
+- Added support for PHP 8.5 ([#704]), by [@localheinz]
+
 ## [`2.20.0`][2.20.0]
 
 For a full diff see [`2.19.1...2.20.0`][2.19.1...2.20.0].