Add PyPy3.10 support (and update PyPy3.9)

Can you add support for PyPy3.10 and upgrade to the latest PyPy3.9 on Ubuntu 22.04 (Jammy Jellyfish)?

More precisely, versions pypy3.10-v7.3.15 and pypy3.9-v7.3.15, which are stable, cf. PyPy v7.3.15 release.

There are some issues with pypy3.9-7.3.9, which is the version currently available.

Note: this is a repost of reply in old fixed issue ubuntu-22-04-jammy-jellyfish.

Anyone working on this?