feat(ci): add tooling (github actions) #2

	name: Lint, Test

	on:
	push:
	pull_request:
	branches: [main]

	concurrency:
	# New commit on branch cancels running workflows of the same branch
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	env:
	PYTHON_VERSION: "3.10"
	POETRY_VERSION: "1.6.1"

	jobs:
	lint-and-test:
	runs-on: ubuntu-latest
	defaults:
	run:
	shell: bash

	steps:
	- name: Check out repository
	uses: actions/checkout@v4

	- name: Setup python
	uses: actions/setup-python@v4
	with:
	python-version: ${{ env.PYTHON_VERSION }}

	- name: Install Poetry
	uses: snok/install-poetry@v1
	with:
	virtualenvs-create: true
	virtualenvs-in-project: true
	installer-parallel: true

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

	- name: Install dependencies if cache does not exist
	if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
	run: poetry install --no-interaction --no-root

	- name: Install project
	run: poetry install --no-interaction

	- name: Setup just
	uses: taiki-e/install-action@just

	- name: Enforce code style (Ruff)
	run: just ruff-show-violations

	- name: Verify code formatting (Black)
	run: just black-diff

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