test: 💍 add missing controller unit tests in admin-ui (#2553)

* test: 💍 add missing controller unit tests in admin-ui

✅ Closes: https://hashicorp.atlassian.net/browse/ICU-14740

ui/admin/tests/unit/controllers/scopes/scope/users/user/accounts-test.js

@@ -16,6 +16,7 @@ module(
         'controller:scopes/scope/users/user/accounts',
       );
       assert.ok(controller);
+      assert.ok(controller.users);
     });
   },
 );

ui/admin/tests/unit/controllers/scopes/scope/users/user/index-test.js

@@ -14,5 +14,6 @@ module('Unit | Controller | scopes/scope/users/user/index', function (hooks) {
       'controller:scopes/scope/users/user/index',
     );
     assert.ok(controller);
+    assert.ok(controller.users);
   });
 });