Restore tests argument to poetry invocation of pytest

[chrisinmtown]

Drop ineffective options section "[pytest]"

[coveralls]

coverage: 94.297%. remained the same
when pulling 3641d2a on chrisinmtown:correct-pytest-args
into aca6511 on spec-first:main.

[RobbeSneyders]

The tests still seem to run fine though?
https://github.com/spec-first/connexion/actions/runs/18464071838/job/52601839745?pr=2067

[chrisinmtown]

The tests still seem to run fine though?

Yes the tests run. If I understand the pytest behavior correctly, it simply scans recursively for a directory named tests. Exactly one of those exists in this repo as of this commit, so the test workflows continue to function as expected. I first noticed the problem in my PR that offers a new directory in examples with a subdirectory tests and a file in there conftest.py. When pytest is allowed to scan the entire repo, it picks those up, and that little conftest.py file breaks the run. So I circled back to fix my botch here. Please consider.

[RobbeSneyders]

Ok thanks for the explanation