adds a summary of the change to plugin-maven/CHANGES.md

Author: lonnelars

plugin-maven/CHANGES.md

@@ -3,6 +3,8 @@
 We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (starting after version `1.27.0`).
 
 ## [Unreleased]
+### Fixed
+* Maven plugin with `ktfmt` default style uses correct continuation indent ([#1562](https://github.com/diffplug/spotless/pull/1562))
 
 ## [2.32.0] - 2023-02-05
 ### Added