CI failures everywhere #4120
Description
CI is failing everywhere: https://app.circleci.com/pipelines/github/pytorch/vision/9296/workflows/74321800-c74f-4bf8-b3f9-02490fbae508/jobs/681799
This is due to torch.testing which used to raise a pytest.UsageError when pytest was installed (which was our case) but now uses a custom exception. I'll fix it and follow-up with them on that, hopefully they'll make it public / change it into the builtin ValueError.