Cannot import NotMasterError from pymongo.errors

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Doens't seem to be compatible with Pymongo 4.3.3

Traceback (most recent call last):
  File "/home/...", line 34, in <module>
    import db
  File "/../db.py", line 2, in <module>
    import mongo_proxy
  File "/home/../env/lib/python3.11/site-packages/mongo_proxy/__init__.py", line 3, in <module>
    from .pymongo3_durable_cursor import PyMongo3DurableCursor
  File "/home/.../env/lib/python3.11/site-packages/mongo_proxy/pymongo3_durable_cursor.py", line 31, in <module>
    from pymongo.errors import NotMasterError
ImportError: cannot import name 'NotMasterError' from 'pymongo.errors' (/home/../env/lib/python3.11/site-packages/pymongo/errors.py)
(env) m

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See PR #32