Create conda pkg for juliacall at conda-forge

[schlichtanders]

I am very surprised that PythonCall supports conda so well, but its python module juliacall itself is not available on conda (at least so far I couldn't find anything on anaconda or the installation documentation).

[cjdoris]

Indeed releasing on Conda Forge would be nice but I haven't had time to do so. Would be a welcome contribution.

[schlichtanders]

I was actively looking on julia dependent packages on Conda and actually currently it is a bit difficult to depend on conda julia or conda juliaup. Both don't have support for arm64 as of now.

My target architecture is mostly arm64, so I would wait for this to stabilize first. Or create a conda package without a julia dependency... also not ideal.

[MilesCranmer]

Also see #378 (comment) for related PRs. Also very eager to see a conda-forge implemented for juliacall so I can move my libraries from pyjulia (but sadly no time to do this myself).

[MilesCranmer]

Now available as conda-forge::pyjuliacall FYI, feel free to close