Clarify the dead batteries workaround for Python >= 3.13

[cclauss]

try:
    import aifc
    import audioop
except ModuleNotFoundError as e:
    raise ModuleNotFoundError("Please run: pip install audioop-lts standard-aifc") from e

https://docs.python.org/3.13/whatsnew/3.13.html#whatsnew313-pep594

python3.13 -m venv .venv
source .venv/bin/activate
python -m pip install --upgrade pip
pip install git+https://github.com/Uberi/speech_recognition.git

        File "/private/var/folders/2n/pb5cf4g10kdfvw9yvsfxy4gr0000gn/T/pip-req-build-uiogiiny/speech_recognition/__init__.py", line 7, in <module>
          import aifc
      ModuleNotFoundError: No module named 'aifc'
 
× Getting requirements to build wheel did not run successfully.
│ exit code: 1

[cclauss]

@ftnext Your review, please.

[ftnext]

It seems that there is no reason to merge this pull request as it has already been fixed in SpeechRecognition 3.12.0 (#781).

on my macOS

% python -V
Python 3.13.1
% python -m venv .venv --upgrade-deps
% source .venv/bin/activate
% python -m pip install SpeechRecognition==3.12.0
Successfully installed SpeechRecognition-3.12.0 audioop-lts-0.2.1 standard-aifc-3.13.0 standard-chunk-3.13.0 typing-extensions-4.12.2
% python
>>> import speech_recognition as sr
>>>

If you cannot install 3.12.0 in your environment, please create an issue.