mention PHP 8.1 in CHANGELOG.md

Author: eduardlleshi

CHANGELOG.md

@@ -4,9 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [1.4.0] - 2022-02-10
+## [1.4.0] - 2022-02-15
 ### Added
-- Support for Laravel 9.x
+- Support for Laravel 9.x and PHP 8.1
 
 ## [1.3.1] - 2020-12-01
 ### Added