TST: Bump checkout version and add Python 3.12 #39

	name: Release

	on:
	pull_request:
	release:
	types: [released]

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	build-n-publish:
	name: Build and publish Python 🐍 distributions 📦 to PyPI
	runs-on: ubuntu-latest
	if: github.repository == 'spacetelescope/stsynphot_refactor'

	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- uses: actions/setup-python@v4
	with:
	python-version: '3.10'

	- name: Install python-build and twine
	run: python -m pip install build "twine>=3.3"

	- name: Build package
	run: python -m build --sdist --wheel .

	- name: List result
	run: ls -l dist

	- name: Check dist
	run: python -m twine check --strict dist/*

	- name: Test package
	run: \|
	cd ..
	python -m venv testenv
	testenv/bin/pip install pytest-astropy ci-watson stsynphot_refactor/dist/*.whl
	testenv/bin/python -c "import stsynphot; stsynphot.test()"

	# FOR DEBUGGING ONLY: repository_url (TestPyPI) and verbose;
	# Use appropriate token if debugging with TestPyPI
	- name: Publish distribution 📦 to PyPI
	if: github.event_name == 'release'
	uses: pypa/gh-action-pypi-publish@release/v1
	with:
	user: __token__
	password: ${{ secrets.PYPI_TOKEN }}
	#repository_url: https://test.pypi.org/legacy/
	#verbose: true

Provide feedback