Drupal 11 compatibility fixes

Hi,

I have tested MR!11, and it is now working fine. I have attached a screenshot for your reference.

I have also moved it to RTBC++.

Thanks!

Please make a new version.

I've added a gitlab-ci.yml file.
There are still some phpstan errors, but those don't seem to be related to the Drupal 11 compatibility. So I guess those can be fixed in a follow-up issue.

D11 is out!

Ultimately, this patch file can help all of us to upgrade to D11 before contributor will publish new tag with changes.

When D11 version will be available?
Thank you