Bump actions/checkout from 3 to 4 #29

	name: flake8/black check
	on:
	- push
	- pull_request

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v4

	with:
	python-version: '3.x'
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	- name: Lint with flake8
	run: \|
	pip install flake8
	flake8 .
	continue-on-error: true
	- name: Lint with black
	uses: psf/black@stable
	with:
	options: "--check --verbose"

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