fix: 🐛 accounts update refactor (#1822)

* fix: 🐛 accounts update refactor

Changed `type` and `auth_method_id` on `accounts` model to `readOnly` so
it is not sent in API payload.

✅ Closes: ICU-10503

* refactor: 💡 fix test

Refactor test to not include removed attributes.

* refactor: 💡 refactor test

Fix test

addons/api/addon/generated/models/account.js

@@ -13,11 +13,13 @@ export default class GeneratedAccountModel extends BaseModel {
   // =attributes
 
   @attr('string', {
+    readOnly: true,
     description: 'The type of the resource, to help differentiate schemas',
   })
   type;
 
   @attr('string', {
+    readOnly: true,
     description: 'The owning auth method ID.',
   })
   auth_method_id;