Updates for latest `black`, fix `isort` w `poetry` #10

	name: Package Build
	on:
	push:
	branches:
	- main
	pull_request:
	jobs:
	build:
	name: Package building
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ['3.9', 'pypy3.9']

	steps:
	- name: Check out code
	uses: actions/checkout@v3
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: 3.9
	- name: Install poetry
	run: pip install poetry
	- name: Run build
	run: poetry build
	- name: Upload artifacts
	uses: actions/upload-artifact@v3
	with:
	name: Artifacts
	path: dist
	if-no-files-found: error

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