fix changelog

Author: jellizaveta

CHANGELOG.md

@@ -23,6 +23,8 @@ The format is based on [Keep a Changelog], and this project adheres to [Semantic
 
 - `no-invalid-scriptlets` linter rule.
 
+[4.0.0-beta.5]: https://github.com/AdguardTeam/AGLint/compare/v4.0.0-beta.4...v4.0.0-beta.5
+
 ## [4.0.0-beta.4] - 2025-12-11
 
 ### Fixed