PyCall now installs Python3.12 by default which is incompatible with some of our python dependencies

[hollandjg]

It looks like PyCall installs a conda which in turn installs python3.12 in the base environment by default. Since we can only use the base environment with PyCall, and python3.12 isn't compatible with our dependencies, building the containers has become very difficult.

[tdivoll]

Thanks for posting this, I was just about to try resolving an env with py 3.12 to get our package registered with a new version. The auto-merging for updating versions in the Julia General registry also uses py 3.12 and fails becasue of the python deps.