Sncosmo

Fix issue with Python 3.12. Added dependency, looseversion, to replace removed distutil module (https://github.com/sncosmo/sncosmo/issues/387).

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- Fix issue with Python 3.12. Added dependency, `looseversion`, to replace removed `distutil` module (387).

- Add [ultrasat](https://www.weizmann.ac.il/ultrasat/) bandpasses (#381).

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- Add GOTO_ (374) and `DES u`_ (371) filters.

.. _GOTO: https://goto-observatory.org/
.. _DES u: https://noirlab.edu/science/programs/ctio/filters/Dark-Energy-Camera

Major Changes:

- Dropped support for Python <3.7 (361)
- Add phase dependence option to PropagationEffect (359)

Additions & Improvements:

- Add retrained SALT2 models from the DES and Pantheon+ teams (355)
- Add TESS filter (357)

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- Add P22 SALT3-NIR model (350)
- Updated SALT3 input calibration (339)
- Add Gaia filters (351)
- Improvements to code management