Replace deprecated audioop implementation of PCMVolumeTransformer.read

[davidhozic]

Summary

Replaces PCMVolumeTransformer.read implementation.

Closes #2176.

What is the feature request for?

The core library

The Problem

The built-in Python library audioop will be removed in Python 3.13 and it is deprecated since Python 3.11.
PCMVolumeTransformer.read() uses this module to do multiplications on bytes.

The Ideal Solution

Replace PCMVolumeTransformer.read() with a pure Python equivalent.

The Current Solution

PCMVolumeTransformer.read() uses the audioop.mul to multiply with volume.

Additional Context

No response

[ToothyDev]

Bumping this as 3.13 is now stable and released