Changed CatShardsAction to internal to allow non-admin users

Signed-off-by: Somesh Gupta <guptasom@amazon.com>

Author: guptasom

CHANGELOG.md

@@ -121,7 +121,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Use OpenSearch version to deserialize remote custom metadata([#16494](https://github.com/opensearch-project/OpenSearch/pull/16494))
 - Fix AutoDateHistogramAggregator rounding assertion failure ([#17023](https://github.com/opensearch-project/OpenSearch/pull/17023))
 - Fix the failing CI's with `Failed to load eclipse jdt formatter` error ([#17172](https://github.com/opensearch-project/OpenSearch/pull/17172))
-- Changed CatShardsAction to internal to allow non-admin users ([#17203](https://github.com/opensearch-project/OpenSearch/pull/17203))
+- Changed CatShardsAction to internal to allow non-admin users. ([#17203](https://github.com/opensearch-project/OpenSearch/pull/17203))
 
 ### Security