HelioPy was removed (no Python 3.12 support)

[sapols]

I recently migrated the PyHC environment to Python 3.12.

heliopy was removed because it does not seem to support Python 3.12 (installation fails because its versioneer.py file uses configparser.SafeConfigParser that was removed in 3.12).

This package is deprecated and archived—no longer maintained—so there probably isn't actually anything to do here.

This issue will simply mark that heliopy will no longer be included in the PyHC Environment as of Python 3.12, unless we find a fix or someone revives and updates the repo.