Change php requirement from ^7.2|^8 to >=7.2

Author: ekvedaras

CHANGELOG-1.x.md

@@ -5,6 +5,8 @@ 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).
 
 ## [Unreleased]
+### Updated
+- Change `php` requirement from `^7.2|^8` to `>=7.2`
 
 ## [1.2.1] - 2020-09-08
 ### Updated

composer.json

@@ -28,7 +28,7 @@
         }
     },
     "require": {
-        "php": "^7.2",
+        "php": ">=7.2",
         "ext-json": "*"
     },
     "require-dev": {