Add py-arch and py-regionmask to neptune-python-env

[climbfuji]

Summary

Add py-arch and py-regionmask to neptune-python-env.

Testing

• CI

I also installed the updated python-dev template on my laptop with:

• [email protected]: built environment, tested py-arch, test of py-regionmask TODO
• [email protected] built environment, tested py-arch, test of py-regionmask TODO

Applications affected

NEPTUNE

Systems affected

None

Dependencies

• waiting on Update py-arch, py-statsmodels (add 0.14.1), py-patsy (add 0.5.4) to be able to use py-cython@3 (spack develop #48769) spack#516

Issue(s) addressed

Resolves #1286
Resolves #1293

Checklist

• This PR addresses one issue/problem/enhancement, or has a very good reason for not doing so.
• These changes have been tested on the affected systems and applications.
• All dependency PRs/issues have been resolved and this PR can be merged.