['PYUP'] Update tox to 4.23.1 #471

	# This workflow will install Python dependencies, run tests and lint with a single version of Python
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: Lint/build

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: 3.9
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install flake8
	- name: Lint with flake8
	run: \|
	flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
	flake8 . --count --exit-zero --max-complexity=10 --max-line-length=119 --statistics
	build:
	strategy:
	matrix:
	python: [3.9]
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install tox
	- name: Test with tox
	run: \|
	tox -e py

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