Update CHANGELOG.md

Author: Woody4618

CHANGELOG.md

@@ -5,11 +5,17 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.2.1] - 2024-03-21
+
+### Changed
+
+- Fix issue in extend program action
+
 ## [0.2.0] - 2025-02-05
 
 ### Changed
+
 - Updated CI/CD pipeline with reusable workflow configurations
 - Enhanced build and test automation
 - Now using solana actions version 0.2.0
-- Updated readme 
-
+- Updated readme