Remove deprecated aerosol_type download_luts usage in rayleigh

[djhoese]

Not sure how this usage fell through the cracks, but download_luts's aerosol_type kwarg is deprecated. It should be aerosol_types=[X].

• Closes #xxxx
• Tests added
• Tests passed: Passes pytest pyspectral
• Passes flake8 pyspectral
• Fully documented
• Add your name to AUTHORS.md if not there already

[djhoese]

We should see how many other warnings are generated during tests and try to reduce it to zero. I ran into this deprecation running Satpy so there's another PR coming there.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.25%. Comparing base (72f08bc) to head (a496559).
Report is 7 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #235   +/-   ##
=======================================
  Coverage   90.25%   90.25%           
=======================================
  Files          22       22           
  Lines        2515     2515           
=======================================
  Hits         2270     2270           
  Misses        245      245           

Flag	Coverage Δ
unittests	90.25% <100.00%> (ø)

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[djhoese]

@adybbroe Here we go, not bad at all:

pyspectral/tests/test_rad_tb_conversions.py::TestRadTbConversions::test_rad2tb
  /home/runner/miniconda3/envs/test-environment/lib/python3.12/site-packages/dask/core.py:133: RuntimeWarning: overflow encountered in exp
    return func(*(_execute_task(a, cache) for a in args))

pyspectral/tests/test_reflectance.py::TestReflectance::test_reflectance
  /home/runner/miniconda3/envs/test-environment/lib/python3.12/site-packages/numpy/ma/core.py:492: RuntimeWarning: invalid value encountered in cast
    fill_value = np.asarray(fill_value, dtype=ndtype)

The reflectance warning is probably a NaN. The overflow in the RadTbConversions is a little concerning.

[adybbroe]

Thanks for spotting this! That was a surprise this has been sitting there for so long.