Fix DeprecationWarning in requests use

[joernu76]

/opt/conda/envs/mss-develop-env/lib/python3.10/site-packages/requests/auth.py:46: DeprecationWarning: Non-string passwords will no longer be supported in Requests 3.0.0. Please convert the object you've passed in (<class 'NoneType'>) to a string or bytes object in the near future to avoid problems. warnings.warn(