Apply suggestions #55

	name: Lint, type-check, test

	on: [push]

	jobs:
	lint-and-test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.11"
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	pip install -r test/requirements.txt
	- name: Linting
	run: \|
	flake8 -v
	pylint metadata_extract src diff test *.py
	- name: Type-check
	run: mypy metadata_extract src diff main.py
	- name: Running tests
	run: python -m pytest --cov=metadata_extract

Provide feedback