Automated Drupal 10 compatibility fixes

Goes green in upgrade status.

Gave things a bit of a run over on D10 proper.

Test procedure, approximately:
- up'd D10 ddev env
- `ddev composer require mglaman/composer-drupal-lenient cweagans/composer-patches`
- `ddev composer config --merge --json extra.drupal-lenient.allowed-list '["drupal/migrate_directory"]'`
- `ddev composer config --merge --json extra.patches '{"drupal/migrate_directory": {"D10 Supports": "https://www.drupal.org/files/issues/2022-06-16/migrate_directory.2.0.0.rector.patch"}}'`
- `ddev composer require drupal/migrate_directory`
- added a migration to a module (migrate_directory, in my testing, creating it a `migrations` directory, with a `test_migration.yml`):
    ```
    ---
    id: test_migration
    label: Test Migration
    source:
      plugin: directory
      path: .
    destination:
      plugin: "null"
    ```
- ran bit of test code to check if things appear to be iterating in any capacity:
    ```
    <?php

    /** @var \Drupal\migrate\Plugin\MigrationPluginManagerInterface $pmm */
    $pmm = \Drupal::service('plugin.manager.migration');
    $test_migration = $pmm->createInstance('test_migration');

    /** @var \Drupal\migrate\Plugin\MigrateSourcePluginManager $pmms */
    $pmms = \Drupal::service('plugin.manager.migrate.source');

    $instance = $pmms->createInstance('directory', [
      'path' => '.',
    ], $test_migration);

    var_dump(iterator_count($instance));

    $instance = $pmms->createInstance('directory', [
      'path' => '.',
      'pattern' => '/.twig/',
    ], $test_migration);

    var_dump(iterator_count($instance));

    ```
    - output:
        ```
        int(16567)
        int(970)
        ```

Very much a synthetic test, just seeing that it appears to iterate over _something_ and that it can filter, but looks like things should be fine for D10.

cacrody@gmail.com → made their first commit to this issue’s fork.