Switch to poetry and add support for Python 3.12 #91

	name: Tests

	on: [ push ]

	jobs:
	linters:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.8'
	- name: Install dependencies
	run: \|
	python -m pip install poetry
	python -m poetry config virtualenvs.in-project true
	python -m poetry install
	- name: Run linters
	run: \|
	python -m poetry run tox -e format,linter,mypy
	test:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [ "3.8", "3.9", "3.10", "3.11", "3.12" ]
	steps:
	- uses: actions/checkout@v3
	- name: Setup Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install poetry
	python -m poetry config virtualenvs.in-project true
	python -m poetry install
	- name: Run tox
	env:
	TOXENV: "py${{ matrix.python-version }}-core-tests"
	run: \|
	TOXENV=${{ env.TOXENV }}
	TOXENV=${TOXENV//.}
	python -m poetry run tox -e $TOXENV

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