Use python 3.8 for oldest. #25

	name: Lint

	on:
	- push

	jobs:
	flake8:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.x'

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	pip install flake8
	pip install -r typing-requirements.txt

	- name: Lint with flake8
	run: flake8 requests_mock tests

	- name: Lint type hinting with MyPy
	run: mypy requests_mock

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