Adding Changelog

Signed-off-by: Sarat Vemulapalli <vemulapallisarat@gmail.com>

CHANGELOG.md

@@ -88,6 +88,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Enable sort optimization for all NumericTypes ([#6464](https://github.com/opensearch-project/OpenSearch/pull/6464)
 - Remove 'cluster_manager' role attachment when using 'node.master' deprecated setting ([#6331](https://github.com/opensearch-project/OpenSearch/pull/6331))
 - Add new cluster settings to ignore weighted round-robin routing and fallback to default behaviour. ([#6834](https://github.com/opensearch-project/OpenSearch/pull/6834))
+- [Extensions] Moving Extensions APIs to protobuf serialization. ([#6960](https://github.com/opensearch-project/OpenSearch/pull/6960))
 
 ### Dependencies
 - Bump `org.apache.logging.log4j:log4j-core` from 2.18.0 to 2.20.0 ([#6490](https://github.com/opensearch-project/OpenSearch/pull/6490))

server/build.gradle

@@ -139,7 +139,6 @@ dependencies {
   // protobuf
   api 'com.google.protobuf:protobuf-java:3.22.2'
 
-
   testImplementation(project(":test:framework")) {
     // tests use the locally compiled version of server
     exclude group: 'org.opensearch', module: 'server'