fix:testApi

Modules/Admin/Http/Controllers/Api/reportController.php

@@ -11,7 +11,7 @@ use App\Http\Controllers\Api\BaseController;
 
 class ReportController extends BaseController
 {
-    public function testApi(): string
+    public function testApi()
     {
         $result['msg']    = ApiEnum::RETURN_SUCCESS;
         $result['code']    = "200";