Add Python 3.12 to the build matrix #176

	name: Run tests
	on: [push]
	jobs:
	build:
	runs-on: ubuntu-22.04
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.8", "3.9", "3.10", "3.11", "3.12-dev"]
	steps:
	- name: Checkout code
	uses: actions/checkout@v3

	- name: Set up Python ${{ matrix.python-version }}
	id: setup-python
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}

	- name: Cache Poetry install
	uses: actions/cache@v3
	with:
	path: ~/.local
	# NB! Update key when Poetry version is updated
	key: python-${{ steps.setup-python.outputs.python-version }}-poetry-1.2.2

	- name: Install Poetry
	uses: snok/install-poetry@v1.3.3
	with:
	# NB! Update Poetry cache key when updating Poetry version
	version: 1.2.2
	virtualenvs-create: true
	virtualenvs-in-project: true

	- name: Load cached venv
	id: cached-poetry-dependencies
	uses: actions/cache@v3
	with:
	path: .venv
	key: venv-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}

	- name: Install dependencies
	run: poetry install --all-extras --no-interaction --no-root
	if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'

	- name: Install library
	run: poetry install --all-extras --no-interaction

	- name: Test with pytest
	run: poetry run pytest

Provide feedback