Bump actions/checkout from 2 to 4 #582

	name: Test things on pushes

	on: [push, pull_request]

	jobs:
	lint-and-test:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	# We currently only support up to python 3.11
	# because aiohttp does not support 3.12 as of yet.
	# 3.7 because Google Colab uses 3.7 by default.
	python-version: [3.7, 3.11]

	steps:
	- uses: actions/checkout@v4
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	cache: "pip"
	cache-dependency-path: \|
	**/setup.py
	- name: Install deps
	run: \|
	python -m pip install --upgrade pip
	pip install -e .[test,types]
	- name: Lint with mypy
	run: \|
	mypy aleph_alpha_client
	mypy --ignore-missing-imports tests
	- name: Run tests
	run: \|
	pytest
	env:
	TEST_API_URL: https://api.aleph-alpha.com
	TEST_TOKEN: ${{ secrets.AA_API_TOKEN }}

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