Update CHANGELOG

Author: ajanikow

CHANGELOG.md

@@ -1,6 +1,8 @@
 # Change Log
 
 ## [master](https://github.com/arangodb/kube-arangodb/tree/master) (N/A)
+
+## [1.2.27](https://github.com/arangodb/kube-arangodb/tree/1.2.27) (2023-04-27)
 - (Feature) Add InSync Cache
 - (Feature) Force Rebuild Out Synced Shards