Support pytest 6.*

[Querela]

Current version of pytest is something like 6.2.3. The package requires a pytest version lower than 6 which only allows for pytest==5.4.3.
Not sure whether changes are required, as the example is from 2018. This seems different:

@pytest.fixture(autouse=True)
def collect_types_fixture():
    from pyannotate_runtime import collect_types
    collect_types.start()
    yield
    collect_types.stop()

https://github.com/dropbox/pyannotate/blob/1e7ddf09fdbc6fa37b2cf261f36a5563a0fe772a/example/example_conftest.py#L18-L23

[obi1kenobi]

That does seem like a different approach. At this point, I'm not sure if that example simply wasn't around when I wrote this plugin, or if there was a specific reason to go with another approach.

If you'd like to open a PR updating the plugin to use that approach and updating the pytest bound to <7, I'd be happy to approve it and publish a new version.

[Querela]

I can look into it but I'm not sure how to test it besides on some of my own projects.
And I can also not guarantee some timeline. Just updating the setup.py might not be enough.

[obi1kenobi]

I'm in the same boat 😄 Thanks for looking into it!

[obi1kenobi]

Closed by #10.