Rename to drupal_composer_builder for Composer 2.0

composer.json

@@ -16,7 +16,7 @@
   },
   "license": "GPL-2.0+",
   "minimum-stability": "dev",
-  "name": "fgm/drupal_composer__builder",
+  "name": "fgm/drupal_composer_builder",
   "require": {
     "composer-plugin-api": "^1.1"
   },