chore: update CHANGELOG for PR #36

Author: actions-user

CHANGELOG.md

@@ -22,3 +22,5 @@
 - [2026-01-12] DamImpr: redis cache with phpredis or predis [#34](https://github.com/DamImpr/cache-multi-layer/pull/34) 
 
 - [2026-01-16] DamImpr: prefix key [#35](https://github.com/DamImpr/cache-multi-layer/pull/35) 
+
+- [2026-01-16] DamImpr: hotfix null value [#36](https://github.com/DamImpr/cache-multi-layer/pull/36)