Update CHANGELOG

Author: nunomaduro

CHANGELOG.md

@@ -1,6 +1,10 @@
 # Release Notes
 
-## [Unreleased](https://github.com/laravel/octane/compare/v2.0.6...2.x)
+## [Unreleased](https://github.com/laravel/octane/compare/v2.1.0...2.x)
+
+## [v2.1.0](https://github.com/laravel/octane/compare/v2.0.6...v2.1.0) - 2023-10-06
+
+- Adds Herd support by [@nunomaduro](https://github.com/nunomaduro) in https://github.com/laravel/octane/pull/743
 
 ## [v2.0.6](https://github.com/laravel/octane/compare/v2.0.5...v2.0.6) - 2023-08-29