chore: update changelog for reflecting overridable classLoader in JarState

Author: simschla

CHANGES.md

@@ -10,7 +10,9 @@ This document is intended for Spotless developers.
 We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (starting after version `1.27.0`).
 
 ## [Unreleased]
+### Added
 * Support for`clang-format` on maven-plugin ([#2406](https://github.com/diffplug/spotless/pull/2406))
+* Allow overriding classLoader for all `JarState`s to enable spotless-cli ([#xxx](https://github.com/diffplug/spotless/pull/XXX))
 
 ## [3.0.2] - 2025-01-14
 ### Fixed