Update changelog

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

CHANGELOG.md

@@ -21,6 +21,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - OpenJDK Update (July 2024 Patch releases) ([#14998](https://github.com/opensearch-project/OpenSearch/pull/14998))
 - Bump `com.microsoft.azure:msal4j` from 1.16.1 to 1.16.2 ([#14995](https://github.com/opensearch-project/OpenSearch/pull/14995))
 - Bump `actions/github-script` from 6 to 7 ([#14997](https://github.com/opensearch-project/OpenSearch/pull/14997))
+- Bump `org.bouncycastle:bcpg-fips` from 1.0.7.1 to 2.0.8 ([#15103](https://github.com/opensearch-project/OpenSearch/pull/15103))
 
 ### Changed
 - Add lower limit for primary and replica batch allocators timeout ([#14979](https://github.com/opensearch-project/OpenSearch/pull/14979))