Require contao-community-alliance/composer-plugin ^2.4

Author: MiniModel

composer.json

@@ -32,7 +32,7 @@
   },
   "require": {
     "php": "^5.6 || ^7.0",
-    "contao-community-alliance/composer-plugin": "~2.0",
+    "contao-community-alliance/composer-plugin": "^2.4",
     "contao-community-alliance/dc-general": "~2.0@beta",
     "contao/core": "^3.5.5",
     "metamodels/core": "~2.0@alpha"