fix behaviour with pytest-asyncio 1.2.0

[MeggyCal]

pytest-asyncio started throwing error on invalid asyncio_default_fixture_loop_scope entries in pytest-dev/pytest-asyncio#1189

[cla-checker-service]

💚 CLA has been signed

[MeggyCal]

❌ Author of the following commits did not sign a Contributor Agreement: 4147d84

Please, read and sign the above mentioned agreement if you want to contribute to this project

Now I did. But it is an inconvenience and I recommend you to not require this step.

[pquentin]

Thanks, I did not realize the quotes would be kept as part of the string using a setup.cfg file.