need python 3.12 release

[fbergmann]

@luciansmith Currently there is no release of pyomexmeta for python 3.12, it would be great if this could be added. Especially since it is a requirement for the biosimulators to run.

[luciansmith]

I will work on this! Looks like I'll either need to update the docker image with Py312 and build on azure, or move to github actions like we've done with everything else.