chore: filter warnings

[henryiii]

No description provided.

[graingert]

It's probably worth

addopts = ["--strict-markers", "--strict-config"]
xfail_strict = true

also

[henryiii]

Possibly --show-locals , too. I think we should move this one mention of pytest config over to the pytest page (which hadn't been written when this was originally added). Will do that later, though.

[henryiii]

Ahh, this is the cookie, not the dev pages. Yes, we don't really have 1:1 on the pytest page and the pytest portion of the cookie, so we could probably do that sooner. But this would be a good opportunity to get them in better sync on pytest.