update changelog

Author: RobinMalfait

packages/@headlessui-react/CHANGELOG.md

@@ -17,6 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Ensure interacting with a `Dialog` on iOS works after interacting with a disallowed area ([#3801](https://github.com/tailwindlabs/headlessui/pull/3801))
 - Freeze Listbox values as soon as possible when closing ([#3802](https://github.com/tailwindlabs/headlessui/pull/3802))
 - Ensure refs are forwarded when freezing data ([#3390](https://github.com/tailwindlabs/headlessui/pull/3390))
+- Do not serialize React components into form fields ([49e9e8e](https://github.com/tailwindlabs/headlessui/commit/49e9e8e54d71b50971af7bc064a62827190e8b36))
 
 ## [2.2.8] - 2025-09-12