Prepare 4.1.0 release

Author: HexDecimal

CHANGELOG.md

@@ -6,6 +6,8 @@ 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]
+
+## [4.1.0] - 2023-07-28
 ### Added
 - Now supports giving a query to another relation query, allowing conditional and chained relation queries. https://github.com/HexDecimal/python-tcod-ecs/issues/1