Update CHANGELOG for auto-release v0.30.0

Author: GitHub Bot

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## [Unreleased]
 
+## [v0.30.0] - 2024-12-04
+
 ## [v0.29.2] - 2024-09-28
 
 ## [v0.29.1] - 2024-09-23
@@ -384,7 +386,9 @@ We thank all contributors
 who have helped make `pyjanitor`
 the package that it is today.
 
-[Unreleased]: https://github.com/pyjanitor-devs/pyjanitor/compare/v0.29.2...HEAD
+[Unreleased]: https://github.com/pyjanitor-devs/pyjanitor/compare/v0.30.0...HEAD
+
+[v0.30.0]: https://github.com/pyjanitor-devs/pyjanitor/compare/v0.29.2...v0.30.0
 
 [v0.29.2]: https://github.com/pyjanitor-devs/pyjanitor/compare/v0.29.1...v0.29.2