Update main.yml, swapped back to ubuntu-latest #23

	name: Publish Py Protein Inference to PyPI and TestPyPI

	on: [push]

	jobs:
	build-n-publish:
	name: Build and publish Python 🐍 distributions 📦 to PyPI and TestPyPI
	runs-on: ubuntu-20.04

	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0
	- name: Set up Python 3.9
	uses: actions/setup-python@v3
	with:
	python-version: 3.9
	- name: Install wheel
	run: >-
	pip install wheel
	- name: Build a binary wheel and a source tarball
	run: >-
	python setup.py sdist bdist_wheel
	- name: Publish distribution 📦 to PyPI
	if: startsWith(github.ref, 'refs/tags')
	uses: pypa/gh-action-pypi-publish@master
	with:
	password: ${{ secrets.PYPI_API_TOKEN }}

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