convert nosetests to pytest

[A-Baji]

Bug Report

Description

nose does not support python 3.10
nose-devs/nose#1099
https://nose.readthedocs.io/en/latest/#note-to-users

[miraclemore]

install nose-py3 instead of nose on Python3.10

[A-Baji]

Hey @miraclemore, thanks for the suggestions. However, after looking into nose-py3 we have decided not to use it as it does not seem to be a credible project.

[jverswijver]

Seems like it is much easier to test python logging with pytest than with nosetest, another reason why we should consider switching to pytest.

[ethho]

Fixed in #1142.