fix: incorrect class name

If we specifies FQCN, Config\Factory is not loaded since CI v4.4.0.

Author: kenjis

system/Config/Factories.php

@@ -377,7 +377,7 @@ public static function getOptions(string $component): array
             // Handle Config as a special case to prevent logic loops
             ? self::$configOptions
             // Load values from the best Factory configuration (will include Registrars)
-            : config(Factory::class)->{$component} ?? [];
+            : config('Factory')->{$component} ?? [];
 
         // The setOptions() reset the component. So getOptions() may reset
         // the component.