fix Changelog

Author: Alexmg86

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 All notable changes to `laravel-sub-query` will be documented in this file
 
-## [v1.9.9 (2021-04-14)](https://github.com/Alexmg86/laravel-sub-query/compare/v1.9.8...v1.9.9)
+## [v1.9.9 (2021-04-23)](https://github.com/Alexmg86/laravel-sub-query/compare/v1.9.8...v1.9.9)
 ### Added
 - methods whereCurrentYear, whereCurrentMonth, whereCurrentDay