Test transcribe_worker.py

[kzys]

I couldn't reproduce #118 with pytubefix 8.13.1.

[kzys]

@awong-dev Do you know the version of pytubefix on the production image? requirements.txt can't lock the versions. So it might be the reason I couldn't reproduce the issue.

[awong-dev]

Looks like 8.13.1

% docker run -ti awongdev/transcribe:latest bash
root@f80111923ae6:/workspace/app# cat /opt/conda/lib/python3.10/site-packages/pytubefix/version.py
__version__ = "8.13.1"

if __name__ == "__main__":