Bump actions/download-artifact from 2 to 4.1.7 in /.github/workflows #33

	name: PyPI
	on:
	push:
	branches:
	- main
	- auto-release
	pull_request:
	branches: [main]
	release:
	types: [published]

	jobs:
	build:
	name: Build source distribution
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0
	- uses: actions/setup-python@v2
	with:
	python-version: "3.8"
	- name: Build the sdist
	run: \|
	python setup.py sdist
	- name: Check the sdist installs and imports
	run: \|
	mkdir -p test-sdist
	cd test-sdist
	python -m venv venv-sdist
	venv-sdist/bin/python -m pip install ../dist/logical-unification-*.tar.gz
	- uses: actions/upload-artifact@v2
	with:
	name: artifact
	path: dist/*

	upload_pypi:
	name: Upload to PyPI on release
	needs: [build]
	runs-on: ubuntu-latest
	if: github.event_name == 'release' && github.event.action == 'published'
	steps:
	- uses: actions/[email protected]
	with:
	name: artifact
	path: dist
	- uses: pypa/gh-action-pypi-publish@master
	with:
	user: __token__
	password: ${{ secrets.pypi_secret }}

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