Updating python version

[FlorianK13]

Description of the issue

Python version 3.11 is out since a longer time so we should update our tests. We can also include 3.12 already using the allow_prerelease: https://github.com/actions/setup-python/blob/main/docs/advanced-usage.md#allow-pre-releases

Workflow checklist

• [ ] I am aware of the workflow in CONTRIBUTING.md

[FlorianK13]

In this test workflow run on my personal fork, python 3.12 throws an error regarding greenlet:

https://github.com/FlorianK13/open-MaStR/actions/runs/6325600077/job/17178512010?pr=2

I do not really understand this error. Since it is a pre-release, maybe it will be fixed over time.

[FlorianK13]

This was done during #513