Handle change in tar file name caused by setuptools update

[dhalbert]

Stubs .tar.gz filename changed to use an underscore instead of a hypen, by setuptools v69.3.0. See pypa/setuptools#4300. This does not seem likely to be reverted. Handle old and new filenames.

[dhalbert]

Now there is a readthedocs build failure 😕 . Example: https://readthedocs.org/projects/circuitpython/builds/24089178/ . It's not clear to me what the failure is on the RTD side.

[dhalbert]

Now there is a readthedocs build failure 😕 . Example: https://readthedocs.org/projects/circuitpython/builds/24089178/ . It's not clear to me what the failure is on the RTD side.

In successful vs the failed run, it's sphinx 7.2.6 vs 7.3.1. The latter gives this error in the log:

pickling environment... WARNING: cannot cache unpickable configuration value: 'autoapi_prepare_jinja_env'

autoapi_prepare_jinja_env() is a short function in circuitpython/conf.py.

[dhalbert]

I will do this as merges from 9.0.x.