Update changelog

Signed-off-by: dependabot[bot] <[email protected]>

CHANGELOG.md

@@ -7,6 +7,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 ### Dependencies
 - Bump `github.com/aws/aws-sdk-go-v2/config` from 1.27.23 to 1.27.27 ([#584](https://github.com/opensearch-project/opensearch-go/pull/584), [#588](https://github.com/opensearch-project/opensearch-go/pull/588), [#593](https://github.com/opensearch-project/opensearch-go/pull/593))
 - Bump `github.com/aws/aws-sdk-go` from 1.54.12 to 1.55.5 ([#583](https://github.com/opensearch-project/opensearch-go/pull/583), [#590](https://github.com/opensearch-project/opensearch-go/pull/590), [#595](https://github.com/opensearch-project/opensearch-go/pull/595), [#596](https://github.com/opensearch-project/opensearch-go/pull/596))
+- Bump `github.com/aws/aws-sdk-go-v2` from 1.30.3 to 1.30.4 ([#599](https://github.com/opensearch-project/opensearch-go/pull/599))
 
 ### Added