Add GitHub action to publish wheels to PyPi / TestPyPi

**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
We already have a GitHub workflow that builds wheels when the repo is tagged with a release tag or rc tag. Hoever, we have to manually download these files and upload them to PyPi and TestPyPi.

**Describe the solution you'd like**
I would like this automated.

**Describe alternatives you've considered**
Keep doing it manually

**Additional context**

Start by locating the existing GitHub workflow that builds wheels for release and rc tags, then review how its artifacts are produced. Update the workflow so those wheels are published automatically to PyPI and TestPyPI, and verify that tagged releases complete both build and publication steps.

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