aifc lib to be removed in Python 3.13

[tiagovaz]

Hello Olivier!

From https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1084560

Python 3.13 removes a large amount of so called 'dead battery' libraries
from the standard library. As such, code that imports these libraries
will no longer work in Python 3.13, which is the targeted version for
Trixie.

See this link for more details:
https://peps.python.org/pep-0594/#deprecated-modules

I see this library is used on two occasions only in pyo:

pyo/lib/players.py
30:import aifc
359: sf = aifc.open(wrap(path, i)) # Do we need stringencode() here?
555: sf = aifc.open(wrap(path, i))

Would you know any replacement for it? I did some research and couldn't find one :\