update CHANGELOG.md

Signed-off-by: Orlando AGESOKO <orlando.agesoko@soheito.moe>

Author: orages

CHANGELOG.md

@@ -22,6 +22,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Fix bug in Assertion framework(Yaml Rest test): numeric comparison fails when comparing Integer vs Long (or Float vs Double) ([#19376](https://github.com/opensearch-project/OpenSearch/pull/19376))
 - Fix Netty deprecation warnings in transport-netty4 module ([#20233](https://github.com/opensearch-project/OpenSearch/pull/20233))
 - Fix snapshot restore when an index sort is present ([#20284](https://github.com/opensearch-project/OpenSearch/pull/20284))
+- Fix `cluster.remote.<cluster_alias>.server_name` setting no populating SNI ([#17316](https://github.com/opensearch-project/OpenSearch/pull/17316))
 
 ### Dependencies
 - Bump `com.google.auth:google-auth-library-oauth2-http` from 1.38.0 to 1.41.0 ([#20183](https://github.com/opensearch-project/OpenSearch/pull/20183))