Issue #3122672: Start a 9.0.x branch for Varbase and Varbase Project to integrate with Drupal 9

composer.json

@@ -71,9 +71,8 @@
     "drupal/core-dev": "^9.0.0",
     "drupal/console": "^1.0",
     "drush/drush": "^9.0",
-    "behat/behat": "~3.0",
     "phing/phing": "~2.0",
-    "drupal/drupal-extension": "^3.2",
+    "drupal/drupal-extension": "~4.0",
     "emuse/behat-html-formatter": "^0.2.0"
   },
   "config": {