Update changelog to mark version 3.4.4 and set release date

Author: grongierisc

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).
 
-## [unreleased] - Unreleased
+## [3.4.4.] - 2025-06-13
 ### Added
 
 ### Changed