Update for Moodle 4.0

[justusdieckmann]

No description provided.

[ferishili]

Hi @justusdieckmann,
Thanks for your contribution, that would be great if you could also provide some description in order for us to follow the changes and have a better understanding of what is going on.

[justusdieckmann]

Hey @ferishili,

since this is just a collection of small fixes and tweaks to the CI config with no overarching common cause other than to make the plugin ready for 4.0 with the CI running cleanly, I think the commit messages are actually a good overview of the changes (which might sadly be a rare occurrence for me 😄). Do you have any specific part that you would like some details about or reasonings behind?

I have rebased the branch to resolve the merge conflict and added a commit to fix the behat failures that happened in the meantime :)

Cheers
Justus

[ferishili]

Thanks for your contribution