CHANGELOG-3.6: Add note from #19403

Signed-off-by: Ivan Valdes <[email protected]>

Author: ivanvc

CHANGELOG/CHANGELOG-3.6.md

@@ -23,7 +23,7 @@ See [code changes](https://github.com/etcd-io/etcd/compare/v3.5.0...v3.6.0).
 - Removed [etcdctl snapshot status](https://github.com/etcd-io/etcd/pull/13809).
 - Removed [etcdctl snapshot restore](https://github.com/etcd-io/etcd/pull/13809).
 - Removed [etcdutl snapshot save](https://github.com/etcd-io/etcd/pull/13809).
-
+- Removed [NewZapCoreLoggerBuilder in server/embed](https://github.com/etcd-io/etcd/pull/19403)
 
 ### etcdctl v3