Support PHP 8

Author: Naktibalda

composer.json

@@ -19,7 +19,7 @@
     "minimum-stability": "RC",
 
     "require": {
-        "php": ">=5.6.0 <8.0",
+        "php": ">=5.6.0 <9.0",
         "codeception/codeception": "^4.0",
         "php-webdriver/webdriver": "^1.6.0"
     },