doc: add nuts_kwargs to sample_numpyro_nuts docstring

[jhrcook]

The nuts_kwargs argument is currently missing from the docstring of sample_numpyro_nuts. This just adds a simple statement to indicate that the keyword arguments are passed to numpyro.infer.NUTS().

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[canyon289]

Thanks for the contribution!

[codecov]

Codecov Report

Merging #5764 (416da76) into main (ab593b1) will decrease coverage by 3.23%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #5764      +/-   ##
==========================================
- Coverage   89.27%   86.03%   -3.24%     
==========================================
  Files          74       74              
  Lines       13803    13803              
==========================================
- Hits        12322    11875     -447     
- Misses       1481     1928     +447     

Impacted Files	Coverage Δ
pymc/sampling_jax.py	96.96% <ø> (ø)
pymc/step_methods/mlda.py	50.41% <0.00%> (-45.97%)	⬇️
pymc/step_methods/metropolis.py	50.21% <0.00%> (-32.77%)	⬇️
pymc/sampling.py	75.63% <0.00%> (-12.53%)	⬇️
pymc/step_methods/arraystep.py	86.52% <0.00%> (-6.39%)	⬇️
pymc/backends/report.py	86.56% <0.00%> (-4.48%)	⬇️
pymc/backends/base.py	85.71% <0.00%> (-1.47%)	⬇️
pymc/step_methods/slicer.py	94.36% <0.00%> (-1.41%)	⬇️