py-jsonschema: updated to 4.6.1

v4.6.1
------

* Gut the (incomplete) implementation of ``recursiveRef`` on draft 2019. It
  needs completing, but for now can lead to recursion errors.

v4.6.0
------

* Fix ``unevaluatedProperties`` and ``unevaluatedItems`` for types they should
  ignore
* ``jsonschema`` now uses `hatch <https://hatch.pypa.io/>`_ for its build
  process. This should be completely transparent to end-users (and only matters
  to contributors).

(adam)