Fix changelog release dates

Author: irskep

CHANGELOG.md

@@ -4,13 +4,13 @@
 
 ## Unreleased
 
-## 0.2.1 - 2025-01-09
+## 0.2.1 - 2025-07-09
 
 ### Changed
 
 - Patch release to sync PyPI version with git tag (no code changes)
 
-## 0.2.0 - 2025-01-08
+## 0.2.0 - 2025-07-08
 
 ### Added
 
@@ -24,4 +24,4 @@
 
 ## 0.1.0 - 2025-07-06
 
-- Initial release of persistproc
+- Initial release of persistproc