Stubtest failed on Fri Jun 03 2022

[github-actions]

Stubtest runs are listed here: https://github.com/python/typeshed/actions/workflows/daily.yml

[JelleZijlstra]

Today's 3.11.0b3 introduced one problem I'm fixing in #8015. There are a few other errors about packages stubtest can't install, but I think that's just flakiness.