Bump gunicorn from 21.2.0 to 22.0.0 #923

	name: codestyle with PEP8

	on:
	pull_request:
	branches:
	- develop
	- master

	jobs:
	codestyle:
	name: Check codestyle PEP8
	runs-on: ubuntu-latest
	steps:
	-
	name: Check out the repo
	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 -r requirements/dev.txt
	-
	name: Lint with flake8
	run: flake8 .
	-
	name: Codestyle by black
	run: black --check .

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