Update CHANGELOG with new enum helper methods

Added new helper methods for enums.

Author: jcornaz

CHANGELOG.md

@@ -7,6 +7,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+### Features 
+
+* Added `as_*` helper methods to enums (Thanks @jakobhellermann)
+
 
 ## [2.5.0] - 2026-02-14