Issue #3302433: Drop support for Composer ~1.0 in the Varbase Social Single...

Issue #3302433: Drop support for Composer ~1.0 in the Varbase Social Single Sign-On module and only support Composer ~2.0 and later versions

composer.json

@@ -27,8 +27,8 @@
     }
   },
   "require": {
-    "composer/installers": "~1.0 || ~2.0",
-    "oomphinc/composer-installers-extender": "~1.0 || ~2.0",
+    "composer/installers": "~2.0",
+    "oomphinc/composer-installers-extender": "~2.0",
     "cweagans/composer-patches": "~1.0",
     "drupal/core": "~9.0 || ~10.0",
     "vardot/module-installer-factory": "~1.0",