Update CHANGELOG for version 0.5.0

Updated release date for version 0.5.0 and added linting and documentation updates to the changelog.

Author: hechth

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [0.5.0] - 2025-06-09
+## [0.5.0] - 2026-03-10
 
 ### Added
 
@@ -20,6 +20,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Minor documentation and test improvements.
+- Linting, documentation updates, dependencies.
 
 ## [0.4.1] - 2025-05-19