dependance composer-api from 1 to 2

Author: joximu

composer.json

@@ -46,7 +46,7 @@
   },
   "require": {
     "php": "^7.1",
-    "composer-plugin-api": "^1.1"
+    "composer-plugin-api": "^2.0"
   },
   "require-dev": {
     "composer/composer": "^1.8",