Add Python 3.12 support

[jobovy]

This issue just tracks progress to fully changing the build/test infrastructure to Python 3.12 Python 3.12 wheels are already being created successfully and are included in the latest release.

This PR tracks progress towards fully supporting Python 3.12. Any necessary fixes will be done separately outside of this PR, so actual Python 3.12 support can be achieved for many platforms before achieving it for all. We believe, in fact, that galpy fully works, but it is hard to fully test until all dependencies support Python 3.12.

Current status:

• Linux works, but can't run tests dependent on JAX or numba, because they do not support Python 3.12 yet. This affects only the spherical DFs (for JAX) and the non-inertial-frame force tests
  • Test JAX-dependent code
  • Test numba-dependent code
• Mac does not work because of an issue with installing h5py:
  • run Mac tests
• Windows untested, because Windows tests use conda in the CI and conda does not support Python 3.12 yet.
  • Run Windows tests
• Wheels:
  • Build Python 3.12 wheels for all platforms

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (d5a3bc9) 99.91% compared to head (2b93abc) 99.91%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #603   +/-   ##
=======================================
  Coverage   99.91%   99.91%           
=======================================
  Files         200      200           
  Lines       29363    29363           
=======================================
  Hits        29339    29339           
  Misses         24       24           

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[github-actions]

This PR has been automatically marked as stale because it has not had recent activity. Please close the PR if it is no longer relevant. If no further activity occurs, the PR may be closed. Thank you for your contributions.