make beforeModel async

Author: uds5501

app/routes/public/role-invites.js

@@ -1,7 +1,7 @@
 import Route from '@ember/routing/route';
 
 export default Route.extend({
-  beforeModel(transition) {
+  async beforeModel(transition) {
     let payload = {
       data: {
         token: transition.to.queryParams.token