Update GitHub Actions #3

	name: CI
	on: pull_request
	jobs:
	test:
	name: Test -- tox
	runs-on: ubuntu-20.04
	timeout-minutes: 10
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Setup Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.5'
	- name: Python pip cache
	uses: actions/cache@v4
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('requirements/*.txt') }}
	- name: Run tests
	run: \|
	pip install $(grep "^tox==" requirements/local.txt)
	tox

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