Updated some version number.

Author: hostep

README.md

@@ -29,7 +29,7 @@ It should be up to the store owner to figure out how he/she wants to fix these p
 This module should be compatible with Magento 2.1.x, 2.2.x, 2.3.x and 2.4.x versions.  
 Some code in this module is using old ways of doing things. It could have been written in a more modern way (using message queues instead of cronjobs, use newer syntax for UI components, ...). But we wanted this module to be compatible with older versions of Magento, so we've chosen this route for now.
 
-The module should be compatible with PHP 7.0, 7.1, 7.2, 7.3, 7.4, 8.1 and 8.2
+The module should be compatible with PHP 7.0, 7.1, 7.2, 7.3, 7.4, 8.1, 8.2 and 8.3
 
 ## Installation