For PyPI, install psydac from .whl
Solves the following issue(s):
PyPI requires all dependencies to be published; psydac is not yet public however.
Core changes:
Re-add a psydac .whl file that we create from https://github.com/max-models/psydac-for-struphy/tree/main for every release. Our psydac version number must coincide with the struphy version number.
Model-specific changes:
None
Documentation changes:
None