update changelog

Author: jdnvn

CHANGELOG.md

@@ -69,6 +69,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Fix incorrect parameter names in MinHash token filter configuration handling ([#15233](https://github.com/opensearch-project/OpenSearch/pull/15233))
 - Fix split response processor not included in allowlist ([#15393](https://github.com/opensearch-project/OpenSearch/pull/15393))
 - Fix unchecked cast in dynamic action map getter ([#15394](https://github.com/opensearch-project/OpenSearch/pull/15394))
+- Fix visit of inner query for FunctionScoreQueryBuilder ([#15404](https://github.com/opensearch-project/OpenSearch/pull/15404))
 
 ### Security