doc(CHANGELOG.md) update to version 4.5.9

Author: lucatume

CHANGELOG.md

@@ -5,6 +5,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [unreleased] Unreleased
 
+## [4.5.9] 2025-11-05;
+
 ### Fixed
 
 - Anticipate plugins activation and loading in the `WPLoader` module to ensure pluggable functions overridden in plugins will correctly apply.
@@ -3238,4 +3240,5 @@ Read the [migration guide here](https://wpbrowser.wptestkit.dev/migration/from-v
 [4.5.6]: https://github.com/lucatume/wp-browser/compare/4.5.4...4.5.6
 [4.5.7]: https://github.com/lucatume/wp-browser/compare/4.5.6...4.5.7
 [4.5.8]: https://github.com/lucatume/wp-browser/compare/4.5.7...4.5.8
-[unreleased]: https://github.com/lucatume/wp-browser/compare/4.5.8...HEAD
+[4.5.9]: https://github.com/lucatume/wp-browser/compare/4.5.8...4.5.9
+[unreleased]: https://github.com/lucatume/wp-browser/compare/4.5.9...HEAD