update changelog to correct release

Signed-off-by: Nicholas Walter Knize <nknize@apache.org>

CHANGELOG.md

@@ -48,7 +48,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Changed http code on create index API with bad input raising NotXContentException from 500 to 400 ([#4773](https://github.com/opensearch-project/OpenSearch/pull/4773))
 - Change http code for DecommissioningFailedException from 500 to 400 ([#5283](https://github.com/opensearch-project/OpenSearch/pull/5283))
 - Require MediaType in Strings.toString API ([#6009](https://github.com/opensearch-project/OpenSearch/pull/6009))
-- [Refactor] core.common to new opensearch-common library ([#5976](https://github.com/opensearch-project/OpenSearch/pull/5976))
 
 ### Deprecated
 
@@ -93,6 +92,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Use ReplicationFailedException instead of OpensearchException in ReplicationTarget ([#4725](https://github.com/opensearch-project/OpenSearch/pull/4725))
 - [Refactor] Use local opensearch.common.SetOnce instead of lucene's utility class ([#5947](https://github.com/opensearch-project/OpenSearch/pull/5947))
 - Cluster health call to throw decommissioned exception for local decommissioned node([#6008](https://github.com/opensearch-project/OpenSearch/pull/6008))
+- [Refactor] core.common to new opensearch-common library ([#5976](https://github.com/opensearch-project/OpenSearch/pull/5976))
 
 ### Deprecated
 
@@ -105,4 +105,4 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 ### Security
 
 [Unreleased 3.0]: https://github.com/opensearch-project/OpenSearch/compare/2.x...HEAD
-[Unreleased 2.x]: https://github.com/opensearch-project/OpenSearch/compare/2.5...2.x
+[Unreleased 2.x]: https://github.com/opensearch-project/OpenSearch/compare/2.5...2.x