Update CHANGELOG after 2.10.2 release (opensearch-project#979)

Signed-off-by: Vacha Shah <[email protected]>

CHANGELOG.md

@@ -3,10 +3,6 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 
 ## [Unreleased 3.0]
 ### Dependencies
-- Bumps `org.apache.httpcomponents.core5:httpcore5-h2` from 5.2.3 to 5.2.4
-- Bumps `org.owasp.dependencycheck` from 9.0.9 to 9.1.0
-- Bumps `io.github.classgraph:classgraph` from 4.8.165 to 4.8.172
-- Bumps `org.eclipse.parsson:parsson` from 1.1.5 to 1.1.6
 
 This section is for maintaining a changelog for all breaking changes for the client that cannot be released in the 2.x line. All other non-breaking changes should be added to [Unreleased 2.x] section.
 
@@ -23,12 +19,9 @@ This section is for maintaining a changelog for all breaking changes for the cli
 - Deprecate RestClientTransport ([#536](https://github.com/opensearch-project/opensearch-java/pull/536))
 
 ### Removed
-- Delete shape property ([#884](https://github.com/opensearch-project/opensearch-java/pull/885))
 
 ### Fixed
 - Fix version and build ([#254](https://github.com/opensearch-project/opensearch-java/pull/254))
-- Fix integer overflow for variables in indices stats response ([#960](https://github.com/opensearch-project/opensearch-java/pull/960))
-- Fix composite aggregations for search requests ([#967](https://github.com/opensearch-project/opensearch-java/pull/967))
 
 
 ### Security
@@ -49,6 +42,24 @@ This section is for maintaining a changelog for all breaking changes for the cli
 
 ### Security
 
+## [2.10.2]
+
+### Added
+
+### Dependencies
+
+### Changed
+
+### Deprecated
+
+### Removed
+
+### Fixed
+- Fix integer overflow for variables in indices stats response ([#960](https://github.com/opensearch-project/opensearch-java/pull/960))
+- Fix composite aggregations for search requests ([#967](https://github.com/opensearch-project/opensearch-java/pull/967))
+
+### Security
+
 ## [2.10.1] - 04/16/2024
 ### Added
 - Add missed fields to PhraseSuggestOption: collapseMatch ([#940](https://github.com/opensearch-project/opensearch-java/pull/940))