Add composer plugin api version

composer.json

@@ -35,6 +35,7 @@
         }
     ],
     "require": {
+        "composer-plugin-api": "^1.0.0",
         "dealerdirect/phpcodesniffer-composer-installer": "^0.4.3",
         "drupal-code-builder/drupal-code-builder-drush": "^9.0",
         "drupal/coder": "^8.2",