Adding changelog

Signed-off-by: Sarat Vemulapalli <[email protected]>

Author: saratvemulapalli

CHANGELOG.md

@@ -18,6 +18,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Add took time to request nodes stats ([#15054](https://github.com/opensearch-project/OpenSearch/pull/15054))
 - [Workload Management] QueryGroup resource tracking framework changes ([#13897](https://github.com/opensearch-project/OpenSearch/pull/13897))
 - Add slice execution listeners to SearchOperationListener interface ([#15153](https://github.com/opensearch-project/OpenSearch/pull/15153))
+- Add allowlist setting for ingest-geoip and ingest-useragent ([#15325](https://github.com/opensearch-project/OpenSearch/pull/15325))
 
 ### Dependencies
 - Bump `netty` from 4.1.111.Final to 4.1.112.Final ([#15081](https://github.com/opensearch-project/OpenSearch/pull/15081))