Merge pull request #359 from bytecodealliance/ydnar/cm/v0.3.0

cm: prep for v0.3.0

Author: ydnar

cm/CHANGELOG.md

@@ -2,7 +2,7 @@
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [v0.3.0]
+## [v0.3.0] — 2025-05-25
 
 ### Added