COMPAT locale provider will be removed in a future release

Description:
From JDK21 onwards a new warning has started to come, "WARNING: COMPAT locale provider will be removed in a future release". So, we have to avoid usage of COMPAT provider.
We were setting exlpicitly to COMPAT locale provider in couple of places, this change is to convert COMPAT to CLDR locale provider.
After this change, couple of tests started to fail becasue some locale data has minor changes in CLDR compared to COMPAT.
For example, day and month short names of GERMAN "de" locale are different in CLDR and COMPAT, just need to add a . in the end for CLDR.

Resolves #11550
Signed-off-by: Abdul Muneer Kolarkunnu <muneer.kolarkunnu@netapp.com>

CHANGELOG.md

@@ -35,6 +35,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Bump `com.netflix.nebula.ospackage-base` from 11.9.0 to 11.9.1 ([#13933](https://github.com/opensearch-project/OpenSearch/pull/13933))
 
 ### Changed
+- Changed locale provider from COMPAT to CLDR ([#11550]())
 - Add ability for Boolean and date field queries to run when only doc_values are enabled ([#11650](https://github.com/opensearch-project/OpenSearch/pull/11650))
 - Refactor implementations of query phase searcher, allow QueryCollectorContext to have zero collectors ([#13481](https://github.com/opensearch-project/OpenSearch/pull/13481))
 - Adds support to inject telemetry instances to plugins ([#13636](https://github.com/opensearch-project/OpenSearch/pull/13636))