docs: Update README.md

Author: utrodus

README.md

@@ -1,6 +1,6 @@
 
 # 🇲🇾 Malaysia Public Holiday
-![PHP Version](https://img.shields.io/badge/PHP-%3E%3D8.2-blue)
+![PHP Version](https://img.shields.io/badge/PHP-%3E%3D8.3-blue)
 [![Build Status](https://github.com/utrodus/malaysia-public-holiday/actions/workflows/tests.yaml/badge.svg?label=Build+Status)](https://github.com/utrodus/malaysia-public-holiday/actions/workflows/tests.yaml)
 [![Packagist Stable Version](https://img.shields.io/packagist/v/utrodus/malaysia-public-holiday.svg)](https://packagist.org/packages/utrodus/malaysia-public-holiday)
 
@@ -36,7 +36,7 @@ It’s best for HR applications, attendance systems, logistics planning, calenda
 
 ## 🚀 Requirements
 
-- PHP >= **8.2**
+- PHP >= **8.3**
 - Composer
 
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