Update CHANGELOG

Author: lam0819

CHANGELOG.md

@@ -5,6 +5,10 @@ All notable changes to `workflow-engine-core` 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).
 
+## v0.0.2-alpha - 2025-05-29
+
+**Full Changelog**: https://github.com/solutionforest/workflow-engine-core/compare/v0.0.1-alpha...v0.0.2-alpha
+
 ## v0.0.1-alpha - 2025-05-29
 
 ### What's Changed