Update changelog for version 9.0.1

Author: Sephster

CHANGELOG.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [9.0.1] - released 2024-10-14
 ### Fixed
 - Auto-generated event emitter is now persisted. Previously, a new emitter was generated every time (PR #1428)
 - Fixed bug where you could not omit a redirect uri even if one had not been specified during the auth request (PR #1428)
@@ -653,7 +655,8 @@ Version 5 is a complete code rewrite.
 
 - First major release
 
-[Unreleased]: https://github.com/thephpleague/oauth2-server/compare/9.0.0...HEAD
+[Unreleased]: https://github.com/thephpleague/oauth2-server/compare/9.0.1...HEAD
+[9.0.1]: https://github.com/thephpleague/oauth2-server/compare/9.0.0...9.0.1
 [9.0.0]: https://github.com/thephpleague/oauth2-server/compare/9.0.0-RC1...9.0.0
 [9.0.0-RC1]: https://github.com/thephpleague/oauth2-server/compare/8.5.4...9.0.0-RC1
 [8.5.4]: https://github.com/thephpleague/oauth2-server/compare/8.5.3...8.5.4