Add changelog notes for next release

Author: luke-hill

CHANGELOG.md

@@ -10,6 +10,8 @@ This file is intended to be modified using the [`changelog`](https://github.com/
 ## [Unreleased]
 ### Changed
 - Internal testing code has been refactored to handle older ruby/rails installs
+- Add support for Rails 7.2 (No code changes required) [#586](https://github.com/cucumber/cucumber-rails/pull/586) [#588](https://github.com/cucumber/cucumber-rails/pull/588)
+- Add support for Ruby 3.3 (No code changes required) [#586](https://github.com/cucumber/cucumber-rails/pull/586)
 
 ## [3.0.0] - 2023-11-01
 ### Changed