[3.3] Add S3Repository.LEGACY_MD5_CHECKSUM_CALCULATION to list of repository-s3 settings (#19789)

* [3.3] Add S3Repository.LEGACY_MD5_CHECKSUM_CALCULATION to list of repository-s3 settings

Signed-off-by: Craig Perkins <cwperx@amazon.com>

* Add to CHANGELOG

Signed-off-by: Craig Perkins <cwperx@amazon.com>

---------

Signed-off-by: Craig Perkins <cwperx@amazon.com>

Author: cwperks

CHANGELOG.md

@@ -13,6 +13,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - [Star Tree] Fix sub-aggregator casting for search with profile=true ([19652](https://github.com/opensearch-project/OpenSearch/pull/19652))
 - Fix bwc @timestamp upgrade issue by adding a version check on skip_list param ([19671](https://github.com/opensearch-project/OpenSearch/pull/19671))
 - [Java Agent] Allow JRT protocol URLs in protection domain extraction ([#19683](https://github.com/opensearch-project/OpenSearch/pull/19683))
+- Add S3Repository.LEGACY_MD5_CHECKSUM_CALCULATION to list of repository-s3 settings ([#19789](https://github.com/opensearch-project/OpenSearch/pull/19789))
 
 ### Dependencies
 - Bump ch.qos.logback modules from 1.5.18 to 1.5.20 in HDFS test fixture ([#19764](https://github.com/opensearch-project/OpenSearch/pull/19764))

plugins/repository-s3/src/main/java/org/opensearch/repositories/s3/S3RepositoryPlugin.java

@@ -367,6 +367,7 @@ public List<Setting<?>> getSettings() {
             S3ClientSettings.ROLE_ARN_SETTING,
             S3ClientSettings.IDENTITY_TOKEN_FILE_SETTING,
             S3ClientSettings.ROLE_SESSION_NAME_SETTING,
+            S3ClientSettings.LEGACY_MD5_CHECKSUM_CALCULATION,
             S3Repository.PARALLEL_MULTIPART_UPLOAD_MINIMUM_PART_SIZE_SETTING,
             S3Repository.PARALLEL_MULTIPART_UPLOAD_ENABLED_SETTING,
             S3Repository.REDIRECT_LARGE_S3_UPLOAD,