Add support of Python 3.11 to tests

[ixti]

This issue is about

• [ ] Man pages or command-line usage
• [ ] Website documentation
• [x] Packaging
• [x] Other

Describe the issue

I help maintain Gentoo ebuild of yadm, and it would be nice to support running tests suite with Python 3.11.

• https://github.com/gentoo/gentoo/pull/29712#discussion_r1120080208

[ixti]

Will require pytest to be upgraded to at least 6.2.5: https://github.com/pytest-dev/pytest/discussions/9195

[TheLocehiliosan]

Sure. I think I can arrange this. 👍

[TheLocehiliosan]

Docker is shutting down their free team organizations. I'm working with them to see if they'll transition that org into their DSOS program (open source orgs). Once that's worked out, I should be able to publish new images and target newer versions of python/pytest/etc.

[TheLocehiliosan]

I just merged changes into the develop branch which base all tests and testing dependencies on Python 3.11. This will be part of the next release.

[ixti]

Thank you!