Prepare changelog for v4.6.4

Author: paulbalandan

CHANGELOG.md

@@ -5,6 +5,27 @@ All notable changes to this library 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).
 
+## [v4.6.4](https://github.com/codeigniter4/translations/compare/v4.6.3...v4.6.4) - 2025-12-12
+
+### Changed
+
+- fa (Farsi)
+- fr (French)
+- gu (Gujarati)
+- hi (Hindi)
+- id (Indonesian)
+- ko (Korean)
+- ru (Russian)
+- sv-SE (Swedish)
+- sw (Swahili)
+
+### Others
+
+- chore(deps): bump actions/checkout from 4 to 5 (#500)
+- chore(deps): bump actions/upload-pages-artifact from 3 to 4 (#501)
+- chore(deps): bump actions/cache from 4 to 5 (#514)
+- chore(deps): bump actions/checkout from 5 to 6 (#505)
+
 ## [v4.6.3](https://github.com/codeigniter4/translations/compare/v4.6.2...v4.6.3) - 2025-08-02
 
 ### Changed