Fix downstream ipykernel tests

[ianthomas23]

Locally I can get the downstream ipykernel tests to pass just by removing the explicit downgrade of pytest and pytest_asyncio, so here trying it in CI.

[ianthomas23]

This does fix the ipykernel tests. The subsequent sagemath tests also pass on ubuntu but fail on macos. I've tried switching to a specific mac Intel runner (macos-latest recently changing to be ARM) and playing with the sagemath pins but it hasn't helped. I am not sure how to continue.

[Carreau]

Thanks, merging. I also gave you triage right on the repo, as you've been contributing a lot. Hopefully that will make your life a bit easier. You don't have to use them though. Just recognition.

[ianthomas23]

I also gave you triage right on the repo, as you've been contributing a lot. Hopefully that will make your life a bit easier. You don't have to use them though. Just recognition.

Thanks!