drupal-8-scaffold#16 Finalize D9 scaffold

composer.json

@@ -44,7 +44,8 @@
         "drupal/block_class": "^1.2",
         "drupal/coffee": "^1.0",
         "drupal/colorbox": "^1.6",
-        "drupal/config_split": "^1.5",
+        "drupal/config_auto_export": "^2.0",
+        "drupal/config_split": "^1.x-dev",
         "drupal/core": "^9.0",
         "drupal/dev_modules": "^2.0",
         "drupal/drd_agent": "^4.0",