chore: Add changelog entry for ZooKeeper 3.9.5

Author: Techassi

CHANGELOG.md

@@ -13,6 +13,7 @@ All notable changes to this project will be documented in this file.
 - testing-tools: Added grpcurl utility ([#1493]).
 - opa: Add `1.16.2` ([#1509]).
 - kafka: Add `3.9.2` and `4.2.1` ([#1483])
+- zookeeper: Add `3.9.5` ([#1515])
 
 ### Changed
 
@@ -48,6 +49,7 @@ All notable changes to this project will be documented in this file.
 [#1509]: https://github.com/stackabletech/docker-images/pull/1509
 [#1510]: https://github.com/stackabletech/docker-images/pull/1510
 [#1512]: https://github.com/stackabletech/docker-images/pull/1512
+[#1515]: https://github.com/stackabletech/docker-images/pull/1515
 
 ## [26.3.0] - 2026-03-16