Funsor

Minor release supporting jax 0.4.

What's Changed
* Update black by fritzo in https://github.com/pyro-ppl/funsor/pull/583
* Extend partial_sum_product() to cases tractable for Gaussians by fritzo in https://github.com/pyro-ppl/funsor/pull/584
* update classifiers by anukaal in https://github.com/pyro-ppl/funsor/pull/586
* Fix provenance tensor to work with PyTorch 1.11 by fritzo in https://github.com/pyro-ppl/funsor/pull/588
* Update to PyTorch 1.11.0 by fritzo in https://github.com/pyro-ppl/funsor/pull/589
* Bump to version 0.4.3 by fritzo in https://github.com/pyro-ppl/funsor/pull/590

New Contributors
* anukaal made their first contribution in https://github.com/pyro-ppl/funsor/pull/586

**Full Changelog**: https://github.com/pyro-ppl/funsor/compare/0.4.2...0.4.3

Enhancements

- 543 Added `ProvenanceTensor` for torch backend
- 543 Added `Constant` funsor
- 549 Added `funsor.recipes.forward_fiter_backward_rsample()`
- 553 Added a `Precondition` interpretation for Gaussians, plus `funsor.recipes.forward_fiter_backward_precondition()`
- 572 Support Funsors in `pprint.pprint()` and pdb

Breaking changes

- 568 Switch to `sqrt(precision)` representation for `Gaussian`

- Added new sum product algorithms (contributed by ordabayevy)
- Added many new conjugacy patterns
- Automated op registration and made adding new ops easier
- 419 Support `ExtendedDistribution`
- 432 Support `IndependentConstraint`
- 397 Allow `.reduce(op, vars_not_in_inputs)`
- 430 Add `Tuple` Funsor
- 409 Change `sarkka_bilmes_product` interface