Extend Continuous Integration for macOS and Windows

[damonbayer]

Goal

If we want make PyRenew widely usable, we should extend our CI to run across multiple platforms and ensure that our code works as expected.

Context

While working through our tutorials on macOS, I found that model/docs/example-with-datasets.qmd cannot be rendered on macOS because jnp.abs(1 - jnp.sum(inf_hosp_int)) $\approx$ 1e-07 > 1e-20, which causes inf_hosp_int = deterministic.DeterministicPMF(inf_hosp_int) to error.
This error does not occur in linux.

[gvegayon]

Adding this to the backlog, @damonbayer.

[damonbayer]

This is done in EpiAware: https://github.com/CDCgov/Rt-without-renewal/blob/919b8a8cd40ef116a3004b60720ab33d85091b6c/.github/workflows/test-EpiAware.yaml#L20