Log Message:
py-importlib-metadata: updated to 6.1.0

v6.1.0
* ``packages_distributions`` now honors packages and modules
  with Python modules that not ``.py`` sources (e.g. ``.pyc``,
  ``.so``).

v6.0.1
* Expand protocol for ``PackageMetadata.get_all`` to match
  the upstream implementation of ``email.message.Message.get_all``
  in python/typeshed-9620.

v6.0.0
* Declared ``Distribution`` as an abstract class, enforcing
  definition of abstract methods in instantiated subclasses. It's no
  longer possible to instantiate a ``Distribution`` or any subclasses
  unless they define the abstract methods.

  Please comment in the issue if this change breaks any projects.
  This change will likely be rolled back if it causes significant
  disruption.