[Tiered Caching] Make Indices Request Cache Stale Key Mgmt Threshold setting dynamic

CHANGELOG.md

@@ -25,6 +25,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - [Streaming Indexing] Ensure support of the new transport by security plugin ([#13174](https://github.com/opensearch-project/OpenSearch/pull/13174))
 - Add cluster setting to dynamically configure the buckets for filter rewrite optimization. ([#13179](https://github.com/opensearch-project/OpenSearch/pull/13179))
 - [Remote Store] Add capability of doing refresh as determined by the translog ([#12992](https://github.com/opensearch-project/OpenSearch/pull/12992))
+- [Tiered caching] Make Indices Request Cache Stale Key Mgmt Threshold setting dynamic ([#12941](https://github.com/opensearch-project/OpenSearch/pull/12941))
 
 ### Dependencies
 - Bump `org.apache.commons:commons-configuration2` from 2.10.0 to 2.10.1 ([#12896](https://github.com/opensearch-project/OpenSearch/pull/12896))