A bugfix release, no changes to the API. Users with older versions of jax/jaxlib may
need to upgrade to `jax~=0.1.67` / `jaxlib~=0.1.47` as some parts of the jax API have
changed. Shabadoo has changed how it imports functions from jax and will not import
correctly with older jax versions.
- Fixes 24: set `rng_key` for tests that involve randomness.
- Fixes 12: reduce hackyness of the numpyro/jax installation step in CI.