Make plugin compatible with Drupal 9.0.8

Problem/Motivation

This module no longer works with Drupal 9.0.8.
This module needs to replace deprecated methods with new core methods:

1. $fileSystems->uriScheme() has been replaced with $streamWrapperManager->getScheme()
2. file_destination has been replaced with $fileSystem->getDestinationFilename($destination, $replace). See https://www.drupal.org/node/3006851 →