Add GitHub action that releases to PyPI on Create Release

[IbraheemTuffaha]

As explained in #126, you cannot release a package to PyPI with a direct dependency like whisper-jax (i.e. only installed using pip install git+https://github.com/sanchit-gandhi/whisper-jax.git).

To fix this, the package must be released to PyPI.
I added a GitHub Action to easily allow this to happen.
You only need to make sure you update the version here with every release:

whisper-jax/whisper_jax/__init__.py

Line 16 in 45bff9d

__version__ = "0.0.1"

Then create a tag for every important change then create a release from the tag.
I suggest using Semantic Versioning 2.0.0 for choosing the next release version increment.

To test the release, I tried it on TestPyPI and it worked releasing v0.0.1 (I'll delete it or handover ownership to you if you want).

Now for the real PyPI, you must create a new project from Publishing, at the bottom you will find this 👇

Fill it with:

whisper-jax
sanchit-gandhi
whisper-jax
release.yml

And then we're good to go. It'll be ready to do the release from GitHub :)