Some fixes for Drupal 11.0.x compatibility

[dafeder]

Fixes #4356

To build from scratch, need to do some steps. LMK if these don't work, doing this from memory a bit. We should not merge this until select2 has an official D11 release and we can remove the composer-lenient hack from recommended-project.

1. Use ddev workflow and pull in 11.0.x branch of recommended-project. See updated README on that branch,
2. Composer will fail. Remove dkan and select2 from require section.
3. composer install
4. Add select2 back, and composer install (use update if this fails
5. Add dkan back, and composer update

Changes of note:

• Full removal of Drupal's ContainerAwareEventDispatcher
• Full removal of DKAN's LoggerTrait
• Many PHPUnit data provider functions changed to be abstract
• Replaced many calls to getMockForAbstractClass to simply getMock() due to deprecation. This also meant mocking, for instance, SQLite connection class instead of just the abstract connection class.
• No more use of StatementWrapper in Drupal queries

[dafeder]

Update: as of last push, fixed many errors, but still getting some from:

• Drupal\Tests\dkan_js_frontend\Unit\SimpleSitemapArbitraryLinksAlterTest
• Drupal\Tests\metastore_search\Unit\SearchTest
• Drupal\Tests\metastore\Kernel\DataDictionarySettingsFormTest
• Drupal\Tests\metastore\Unit\MetastoreServiceTest

Also will need

• to re-run with --display-phpunit-deprecations to make sure there are no more of those
• search whole repo for getMockForAbstractClass() which should really be replaced now
• check for other deprecations in linter

[dafeder]

Only test failing at this point seems to be AdminDatasetFileUploadTest::testCreateDatasetWithFileUpload(). I think this is related to something wrong with select2; I also see issues with the form when loading in my browser. May put this aside until there is a proper select2 release for D11.

[dafeder]

Another option, probably better - once all tests pass, revert changes to info.yml files and merge this, so that the other fixes don't get stale.