Add pre-commit config & CI workflows #1

	name: CI

	on: [push]

	jobs:
	ci:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ["3.9", "3.10", "3.11"]
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements-dev.txt
	- name: Type-check with mypy
	run: >-
	mypy configzen/ --strict
	- name: Check with black
	run: >-
	black --check configzen/
	- name: Analyse the code with pylint
	run: >-
	pylint configzen/
	- name: Run tests
	run: >-
	pytest -v tests/

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