Add type stubs for the wave stdlib module to align with the Python 3.15 beta changes.

[mbyrnepr2]

Jelle mentioned in this PR comment that he may produce this change as part of an AI-related task in the future.
I thought about leaving it at that but had a rethink and decided to just take responsibility for my own cPython update.

Tested locally with:

python -m mypy --custom-typeshed-dir <my local clone of typeshed> example.py

where example.py contains:

import wave

from pathlib import Path


AUDIO_FILE = Path("sound.wav")

with wave.open(AUDIO_FILE, "rb") as wave_read:
    pass

[srittau]

You could also consider inlining the type alias, as I don't think it's overly necessary here, but I leave that decision to you.

[srittau]

Suggested change

	_File: TypeAlias = str | IO[bytes] | bytes | PathLike[Any]
	_File: TypeAlias = StrOrBytesPath | IO[bytes]

(StrOrBytesPath needs to be imported from _typeshed.)

[mbyrnepr2]

Well that looks much more readable! Let's do it.

[srittau]

Thanks!

I missed something.

[srittau]

I actually missed something really important.

[github-actions]

According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉