Add missing changelog entry for #1414 and #1413

Author: nedtwigg

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]
+### Added
+* Added support for M2E's incremental compilation ([#1414](https://github.com/diffplug/spotless/pull/1414) fixes [#1413](https://github.com/diffplug/spotless/issues/1413))
 ### Fixed
 * Improve memory usage when using git ratchet ([#1426](https://github.com/diffplug/spotless/pull/1426))