Fix version links in CHANGELOG.md

Updated links for unreleased and v3.2.3 versions.

Author: TomWright

CHANGELOG.md

@@ -6,6 +6,9 @@ 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).
 
 ## [Unreleased]
+- Nothing yet.
+
+## [v3.2.3] - 2026-02-23
 
 ### Added
 - XML parser now preserves comments and processing instructions during round-trip (#175).
@@ -756,7 +759,8 @@ See [documentation](https://daseldocs.tomwright.me) for all changes.
 
 - Everything!
 
-[unreleased]: https://github.com/TomWright/dasel/compare/v3.2.2...HEAD
+[unreleased]: https://github.com/TomWright/dasel/compare/v3.2.3...HEAD
+[v3.2.3]: https://github.com/TomWright/dasel/compare/v3.2.2...v3.2.3
 [v3.2.2]: https://github.com/TomWright/dasel/compare/v3.2.1...v3.2.2
 [v3.2.1]: https://github.com/TomWright/dasel/compare/v3.2.0...v3.2.1
 [v3.2.0]: https://github.com/TomWright/dasel/compare/v3.1.4...v3.2.0