Bump certifi from 2022.12.7 to 2023.7.22 #39

	# mash-up of matrix and pipenv examples from <https://github.com/actions/setup-python#usage>
	name: Test

	on:
	push:
	branches: [master]
	pull_request:
	types: [opened, synchronize, reopened] # default events


	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false # prevent one broken version from stopping all other runs
	matrix:
	# these will be out of date again eventually, add the latest versions
	# and remove the unsupported ones
	python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
	name: Python ${{ matrix.python-version }}
	steps:
	- uses: actions/checkout@v3
	- name: Install pipenv
	run: pipx install pipenv
	- name: Set up Python
	uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python-version }}
	architecture: x64
	cache: 'pipenv'
	- name: Install dependencies
	run: pipenv install --dev
	- name: Lint with flake8
	run: pipenv run flake8 *.py
	continue-on-error: true
	- name: Typecheck with mypy
	run: pipenv run mypy *.py
	- name: Test with unittest
	run: pipenv run python -m unittest discover -v
	- name: Install as package with pip
	run: pip install .
	- name: Run installed version
	run: \|
	focstest --version

Provide feedback