Python 3.12 support

[makslevental]

3.12 has been released.

[makslevental]

for the time being allow-prereleases: true works for me.

[gakugaku]

Stable version was released🎉.
Python Release Python 3.12.0 | Python.org

[hugovk]

Python 3.12.0 final is now available for GitHub Actions and Azure Pipelines:

• https://github.com/actions/python-versions/releases/tag/3.12.0-6381888192

It's not yet cached so installed on-demand.

For example:

• https://github.com/hugovk/test/actions/runs/6389235066/job/17346976586#step:3:12
• https://github.com/hugovk/test/actions/runs/6389235066/job/17346976335#step:3:12
• https://github.com/hugovk/test/actions/runs/6389235066/job/17346976118#step:3:12
• https://dev.azure.com/hugovk/hugovk/_build/results?buildId=4112&view=logs&j=eabc38e2-a63e-5897-4067-d246a1152ce2&t=f836cdd8-9549-59ab-10f7-6441c9b72f2a
• https://dev.azure.com/hugovk/hugovk/_build/results?buildId=4112&view=logs&j=d6e1729d-e4d5-5907-4cf9-7b7c88873db4&t=1ded13f3-d03c-596e-1d56-7cbcee39f6f9
• https://dev.azure.com/hugovk/hugovk/_build/results?buildId=4112&view=logs&j=07c97e54-b4cb-54a6-5b5a-361fb7f7b851&t=17560fc5-3316-5366-a609-f2406dd4a679

[makslevental]

Thanks @hugovk .