CodeIgniter ERROR Creation of dynamic property CI_URI

A PHP Error was encountered Severity: 8192 Message: Creation of dynamic property CI_URI::$config is deprecated Filename: core/URI.php Line Number: 102

Masalah ini terjadi saat menjalankan Codeigniter 3 pada xampp dengan versi PHP 8.x.x
Coba tambahkan kode ini disetiap atas class yg terjadi error.
#[\AllowDynamicProperties]

/system/core/URI.php

#[\AllowDynamicProperties]

class CI_URI {

/system/core/Router.php

#[\AllowDynamicProperties]

class CI_Router {

/system/core/Loader.php

#[\AllowDynamicProperties]

class CI_Loader {

/system/core/Controller.php

#[\AllowDynamicProperties]

class CI_Controller {     

/system/core/DB_driver.php

#[\AllowDynamicProperties]

abstract class CI_DB_driver {