Add a docker/dagger-based testing workflow, adopt PEP 517/621 #14

	name: Dagger/Docker Testing Suite

	on:
	push:
	branches:
	- master
	pull_request:
	workflow_dispatch:
	inputs:
	image_tag:
	description: 'Image tag to use for the Docker image'
	required: true
	default: 'latest'

	jobs:
	lint:
	name: Linting
	runs-on: ubuntu-latest
	steps:
	- name: Cancel previous runs
	uses: styfle/[email protected]
	with:
	access_token: ${{ github.token }}
	- name: Checkout
	uses: actions/checkout@v3
	- name: Setup Python
	uses: actions/setup-python@v4
	with:
	python-version: 3.8
	- name: Install dependencies
	run: \|
	python -m pip install pre-commit
	pre-commit install
	- name: Run pre-commit
	run: \|
	pre-commit run --all-files --show-diff-on-failure

	integration:
	name: Integration Tests
	needs: lint
	runs-on: ubuntu-latest
	defaults:
	run:
	shell: bash -l {0}
	strategy:
	matrix:
	python-version: ["3.10"]
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Setup Python
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Dagger testing
	run: \|
	export BASE_IMAGE_TAG=${{ github.event.inputs.image_tag }}
	pip install .[dagger]
	python ./ci/dagger-pipeline.py

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