chore(release): update changelog

Author: mihar-22

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 All notable changes to this project will be documented in this file.
 
-## [unreleased]
+## [1.15.4-next](https://github.com/vidstack/player/releases/tag/v1.15.4-next) (2026-06-05)
 
 ### 🐛 Bug Fixes