Prepare release (#33)

Co-authored-by: Markus Bong <Markus.Bong@devolo.de>

Author: Shutgun

CHANGELOG.md

@@ -4,7 +4,7 @@ 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]
+## [2.3.0] - 2022/09/16
 
 ### Added