Update changelog

Signed-off-by: dependabot[bot] <support@github.com>

CHANGELOG.md

@@ -89,6 +89,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Bump `icu4j` from 70.1 to 75.1 ([#15469](https://github.com/opensearch-project/OpenSearch/pull/15469))
 - Bump `com.azure:azure-identity` from 1.13.0 to 1.13.2 ([#15578](https://github.com/opensearch-project/OpenSearch/pull/15578))
 - Bump `protobuf` from 3.22.3 to 3.25.4 ([#15684](https://github.com/opensearch-project/OpenSearch/pull/15684))
+- Bump `com.nimbusds:oauth2-oidc-sdk` from 11.9.1 to 11.19.1 ([#15862](https://github.com/opensearch-project/OpenSearch/pull/15862))
 
 ### Changed
 - Add lower limit for primary and replica batch allocators timeout ([#14979](https://github.com/opensearch-project/OpenSearch/pull/14979))