update CHANGELOG.md

Author: RobinMalfait

packages/@headlessui-react/CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Allow horizontal scrolling inside the `Dialog` component ([#2889](https://github.com/tailwindlabs/headlessui/pull/2889))
+- Improve cancellation of events when using `disabled` or `aria-disabled` attributes ([#2890](https://github.com/tailwindlabs/headlessui/pull/2890))
 
 ## [2.0.0-alpha.1] - 2023-12-20