Update changelog

Author: adamwathan

CHANGELOG.md

@@ -24,6 +24,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add `text-decoration-color` utilities ([#5760](https://github.com/tailwindlabs/tailwindcss/pull/5760))
 - Add new declarative `addVariant` API ([#5809](https://github.com/tailwindlabs/tailwindcss/pull/5809))
 - Add full color palette for `fill-*` and `stroke-*` utilities (#5933[](https://github.com/tailwindlabs/tailwindcss/pull/5933))
+- Add composable API for colored box shadows ([#5979](https://github.com/tailwindlabs/tailwindcss/pull/5979))
 
 ### Fixed