Python 3.10 target is scheduled for removal in Gentoo:
https://public-inbox.gentoo.org/gentoo-dev/e6ca9f1f4ababb79ab2a3d005c39b483c3ecef6e.camel@gentoo.org/
Sphinx 8.2.0 already dropped support for CPython 3.10 and PyPy 3.10,
leading to multiple CI failures in ::guru.
We can safely remove this target, because GURU is "experimental" and
does not have stable keywords.
Let's not remove "pypy3" right now because
a) There are not many packages using it.
b) So we can see which packages supported PyPy 3.10, and test them with
PyPy 3.11.
Closes: https://github.com/gentoo/guru/pull/291
Signed-off-by: Anna (cybertailor) Vyalkova <cyber+gentoo@sysrq.in>
