Update changelog

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

CHANGELOG.md

@@ -6,7 +6,7 @@ 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 1.54.19 ([#583](https://github.com/opensearch-project/opensearch-go/pull/583), [#590](https://github.com/opensearch-project/opensearch-go/pull/590))
+- Bump `github.com/aws/aws-sdk-go` from 1.54.12 to 1.55.0 ([#583](https://github.com/opensearch-project/opensearch-go/pull/583), [#590](https://github.com/opensearch-project/opensearch-go/pull/590), [#594](https://github.com/opensearch-project/opensearch-go/pull/594))
 
 ### Added