test: fix coverage on some lines (#2546)

app/Http/Controllers/Auth/RegisterController.php

@@ -8,7 +8,6 @@ use App\Helpers\LocaleHelper;
 use App\Helpers\RequestHelper;
 use App\Jobs\SendNewUserAlert;
 use App\Models\Account\Account;
-use App\Helpers\CollectionHelper;
 use App\Http\Controllers\Controller;
 use Illuminate\Support\Facades\Auth;
 use Illuminate\Support\Facades\Validator;
@@ -60,7 +59,7 @@ class RegisterController extends Controller
 
         return view('auth.register')
             ->withFirst($first)
-            ->withLocales(CollectionHelper::sortByCollator(LocaleHelper::getLocaleList(), 'lang'));
+            ->withLocales(LocaleHelper::getLocaleList()->sortByCollator('lang'));
     }
 
     /**