PHP8 Compatibility

Hello,

I’m testing php 8 on dev env. Got this warnings related to URE. Hope this will help you to adapt plugin in the next release.

PHP Warning:  The magic method __wakeup() must have public visibility
/includes/classes/base-lib.php on line 357 
/includes/classes/task-queue.php on line 144
/includes/classes/capabilities-groups-manager.php on line 421
/includes/classes/capabilities.php on line 428
/includes/classes/editor.php on line 1383
/includes/classes/user-role-editor.php on line 58

Thank you in advance!