TST: account for asyncio changes in py314 - #30918

Something is going wrong with installing dependencies on 3.14 as most of the failures have

A module that was compiled using NumPy 1.x cannot be run in
NumPy 2.4.0 as it may crash. To support both 1.x and 2.x
versions of NumPy, modules must be compiled with NumPy 2.0.
Some module may need to rebuild instead e.g. with 'pybind11>=2.12'.

If you are a user of the module, the easiest solution will be to
downgrade to 'numpy<2' or try to upgrade the affected module.
We expect that some modules will need time to support NumPy 2.

and then a segfault.

This is a consequence of wheels deferring issues that should be detected at install time to segfaults an runtime (because the metadata on wheels is not rich enough).