Add skiplist optimization to auto_date_histogram aggregation (opensearch-project#20057)

Signed-off-by: Asim Mahmood <[email protected]>

Author: asimmahmood1

CHANGELOG.md

@@ -74,9 +74,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Refactor the Cache.CacheStats class to use the Builder pattern instead of constructors ([#20015](https://github.com/opensearch-project/OpenSearch/pull/20015))
 - Refactor the HttpStats, ScriptStats, AdaptiveSelectionStats and OsStats class to use the Builder pattern instead of constructors ([#20014](https://github.com/opensearch-project/OpenSearch/pull/20014))
 - Bump opensearch-protobufs dependency to 0.24.0 and update transport-grpc module compatibility ([#20059](https://github.com/opensearch-project/OpenSearch/pull/20059))
-
 - Refactor the ShardStats, WarmerStats and IndexingPressureStats class to use the Builder pattern instead of constructors ([#19966](https://github.com/opensearch-project/OpenSearch/pull/19966))
 - Cleanup HttpServerTransport.Dispatcher in Netty tests ([#20160](https://github.com/opensearch-project/OpenSearch/pull/20160))
+- Add skiplist optimization to auto_date_histogram aggregation ([#20057](https://github.com/opensearch-project/OpenSearch/pull/20057))
 - Throw exceptions for currently unsupported GRPC request-side fields ([#20162](https://github.com/opensearch-project/OpenSearch/pull/20162))
 
 ### Fixed