BumpVersionInChangelog: add new unreleased section to CHANGELOG.md

Author: seebi

CHANGELOG.md

@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](https://semver.org/)
 
+## [Unreleased]
+
+TODO: add at least one Added, Changed, Deprecated, Removed, Fixed or Security section
+
 ## [0.5.1] 2025-11-07
 
 ### Fixed