See: https://github.com/agronholm/anyio/issues/550

Also switches to PEP 517, which will be needed for the next version [2]

[1] https://github.com/agronholm/anyio/issues/550
[2] https://github.com/agronholm/anyio/commit/4c125207a3432a255c5d95b62f9a63d6aca93eaa

uvloop support has been there for a long time, and curio support was
dropped as of anyio 3.0 [1]

[1] https://anyio.readthedocs.io/en/stable/faq.html#why-is-curio-not-supported-as-a-backend

[1] https://github.com/agronholm/anyio/commit/fdf3c9afd137917ff6de71b96c4753cd41c42ef7

community/python-pytest-mock is updated! [1]

[1] https://github.com/archlinux/svntogit-community/commit/bd4893695e7ed561a45505b8b892d230147e5b90

* python-httpcore: compatible since 0.13.1 https://github.com/encode/httpcore/commit/341320fbaf7cac93c7b626076c03ae834d65763b.
  check() in PKGBUILD passed with the updated anyio package as well.
* jupyter-server: compatible since 1.7.0 https://github.com/jupyter-server/jupyter_server/commit/678878f4585e65d4f3fea74562517b8c914e474c

Reported via an out-of-date message on archweb :/