Use stable versions of codeception

Author: Naktibalda

composer.json

@@ -20,7 +20,7 @@
 
     "require": {
         "php": ">=5.6.0 <8.0",
-        "codeception/codeception": "4.0.x-dev | ^4.0",
+        "codeception/codeception": "^4.0",
         "php-webdriver/webdriver": "^1.6.0"
     },
     "require-dev": {