hotfix: restore php8 support

Author: kpicaza

composer.json

@@ -13,7 +13,7 @@
         }
     ],
     "require": {
-        "php": "^7.4.0",
+        "php": "^7.4|^8.0",
         "psr/event-dispatcher": "^1.0"
     },
     "require-dev": {