UserDefaultChecker: use for fetching user roles (#699)

Author: kverstae

src/Checkers/User/UserDefaultChecker.php

@@ -153,11 +153,11 @@ protected function userCachedRoles(): array
         $cacheKey = 'laratrust_roles_for_'.$this->userModelCacheKey().'_'.$this->user->getKey();
 
         if (! Config::get('laratrust.cache.enabled')) {
-            return $this->user->roles()->get()->toArray();
+            return $this->user->getRelationValue('roles')->toArray();
         }
 
         return Cache::remember($cacheKey, Config::get('laratrust.cache.expiration_time', 60), function () {
-            return $this->user->roles()->get()->toArray();
+            return $this->user->getRelationValue('roles')->toArray();
         });
     }