Fix CI #69

	name: CI
	on:
	push:
	pull_request:
	schedule:
	- cron: '0 8 * * 6'
	jobs:
	test:
	runs-on: ubuntu-20.04
	strategy:
	matrix:
	python: ["3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "pypy-3.9"]
	name: "Test: Python ${{ matrix.python }}"
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python }}
	- run: \|
	python -m pip install --upgrade pip
	pip install pytest
	- run: pip install .
	- run: pytest -v
	typecheck:
	name: Type check
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5
	with:
	python-version: "3.12"
	- run: \|
	python -m pip install --upgrade pip
	pip install pytest mypy
	- run: mypy --strict src test
	fmt:
	name: Format
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: psf/black@stable

Provide feedback