Fix typo

Author: rawilk

CHANGELOG.md

@@ -7,7 +7,7 @@ All notable changes to `laravel-form-components` will be documented in this file
 ### What's Changed
 
 - Bump up custom-select z-index to 30 by default
-- Make custom-select z-index configurable via the css variable `--custom-select-z-index`
+- Make custom-select z-index configurable via the css variable `--custom-select-menu-z-index`
 
 **Full Changelog**: https://github.com/rawilk/laravel-form-components/compare/v8.1.0...v8.1.1