Welcome to the forums @emacarayan !
Though we welcome all types of questions related to Streamlit, I feel this is more of a sounddevice/Heroku question than a Streamlit question, I think you’d have a much better chance pinging the Heroku community.
In the Sounddevice installation doc :
If you install the sounddevice module with pip on macOS or Windows, the PortAudio library (with ASIO support on Windows) will be installed automagically. On other platforms, you might have to install PortAudio with your package manager (the package might be called libportaudio2 or similar)
so my guess would be you need to install libportaudio2 this when creating the Heroku worker, maybe someone here knows how to but otherwise the Heroku community is your best bet.