add recently released pypy3.11

[mattip]

Description

PyPy3.11 was released recently. Add it to CI

Suggested changelog entry:

Test PyPy3.11 in CI

[mattip]

Note in the weekly binary testing I am seeing a XPASS (an expected XFAIL unexpectedly pass) for test_exceptions::test_cross_module_exception_translator on MacOS + PyPy, is there something different in my setup?

[rwgk]

Note in the weekly binary testing I am seeing a XPASS (an expected XFAIL unexpectedly pass) for test_exceptions::test_cross_module_exception_translator on MacOS + PyPy, is there something different in my setup?

Nothing I'm aware of. (Best idea, wild guess, latent UB plus some change in the environment?)

I'll merge this PR, thanks!

What is your opinion about removing PyPy 3.8 testing? (those tests flake quite often)

[mattip]

What is your opinion about removing PyPy 3.8 testing? (those tests flake quite often)

From PyPy's perspective, 3.8 and 3.9 are no longer supported. I don't know if pybind11 still wishes to support out-of-date python versions going forward.

[rwgk]

What is your opinion about removing PyPy 3.8 testing? (those tests flake quite often)

From PyPy's perspective, 3.8 and 3.9 are no longer supported. I don't know if pybind11 still wishes to support out-of-date python versions going forward.

I don't. @henryiii?

[henryiii]

I think those are okay to drop. The biggest issue is that in cibuildwheel, it's all or nothing unless you carefully customize. I'm wondering if we should go back to making the PyPy feature be opt-into out of date versions, rather than than opt into all versions, before cibuildwheel 3.0.