num_parallel_workers is deprecated

[nstarman]

numpyro/numpyro/contrib/nested_sampling.py

Line 261 in e462292

num_parallel_workers=1,

This should be replaced by the "devices" argument. I think (but may be wrong) that this defaults to 1 and can be removed entirely, otherwise I think devices=jax.devices()[:1] is the correct substitution.

[nstarman]

I see this will be resolved by #1871

[fehiepsi]

Right. Let me close the issue.