py-mongo: updated to 4.6.0

Changes in Version 4.6
----------------------

PyMongo 4.6 brings a number of improvements including:

- Added the ``serverMonitoringMode`` URI and keyword argument to :class:`~pymongo.mongo_client.MongoClient`.
- Improved client performance and reduced connection requirements in Function-as-a-service (FaaS)
  environments like AWS Lambda, Google Cloud Functions, and Microsoft Azure Functions.
- Added the :attr:`pymongo.monitoring.CommandSucceededEvent.database_name` property.
- Added the :attr:`pymongo.monitoring.CommandFailedEvent.database_name` property.
- Allow passing a ``dict`` to sort/create_index/hint.
- Added :func:`repr` support to the write result classes:
  :class:`~pymongo.results.BulkWriteResult`,
  :class:`~pymongo.results.DeleteResult`,
  :class:`~pymongo.results.InsertManyResult`,
  :class:`~pymongo.results.InsertOneResult`,
  :class:`~pymongo.results.UpdateResult`, and
  :class:`~pymongo.encryption.RewrapManyDataKeyResult`. For example:

    >>> client.t.t.insert_one({})
    InsertOneResult(ObjectId('65319acdd55bb3a27ab5502b'), acknowledged=True)
    >>> client.t.t.insert_many([{} for _ in range(3)])
    InsertManyResult([ObjectId('6532f85e826f2b6125d6ce39'), ObjectId('6532f85e826f2b6125d6ce3a'), ObjectId('6532f85e826f2b6125d6ce3b')], acknowledged=True)

- :meth:`~pymongo.uri_parser.parse_uri` now considers the delimiting slash (``/``)
  between hosts and connection options optional. For example,
  "mongodb://example.com?tls=true" is now a valid URI.
- Fixed a bug where PyMongo would incorrectly promote all cursors to exhaust cursors
  when connected to load balanced MongoDB clusters or Serverless clusters.
- Added the :ref:`network-compression-example` documentation page.
- Added more timeout information to network errors.

(adam)