Extended required php version to ^8.0

Author: shudd3r

composer.json

@@ -21,7 +21,7 @@
     },
     "minimum-stability": "stable",
     "require": {
-        "php": "^7.4",
+        "php": "^7.4 || ^8.0",
         "friendsofphp/php-cs-fixer": "^3.9.5",
         "squizlabs/php_codesniffer": "^3.5.8",
         "phpunit/phpunit": "^9.5.2",