Added Python 3.12 beta

[radarhere]

Python 3.12 beta 1 has been released - https://www.python.org/downloads/release/python-3120b1/

I found that on Alpine, I initially got an error

configure: error: unrecognized options: --with-system-ffi

Googling, I found docker-library/python#715. Looking at the logs for earlier Python versions built on this repository's Alpine, each one had

configure: WARNING: --with(out)-system-ffi is ignored on this platform

So this is a deprecated flag that has finally been removed, and never affected this repository to begin with. I have removed it from Alpine.

[hugovk]

Thanks!

Would be great to have this merged in time for the Pillow's 1st July release (python-pillow/Pillow#6941).

[mattip]

Whoops, meant to merge this a while ago. Thanks for the ping.

[radarhere]

Thanks.

https://hub.docker.com/u/multibuild hasn't updated with the new images, from this or from #40. If uploading to there is just a manual process that you haven't gotten around to yet, no problem - but if you thought it should have happened automatically through some process I'm not aware of, just letting you know that it didn't.

[mattip]

Hmm. It seems the travis builds are not running, there is a notice that we have run out of credits. But the org has credits available. I have reached out to travis' support.

[hugovk]

I saw the same on my account a couple of weeks ago and Travis support fixed it quickly.

[mattip]

The images were uploaded after #42. Should multibuild change its alpine default to 3.18?

[radarhere]

Thanks. I've created multi-build/multibuild#508 to change the alpine default in multibuild.