Drop Python 3.6 and 3.7. Update github actions. #80

	name: Test Package

	on:
	push:
	branches:
	- master
	pull_request:
	workflow_dispatch:
	inputs:
	git-ref:
	description: Git Ref (Optional)
	required: false

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	max-parallel: 4
	matrix:
	python-version: ['3.8', '3.9', '3.10', '3.11', '3.12',
	'pypy3.9', 'pypy3.10']
	steps:
	- name: Clone Repository (Latest)
	uses: actions/checkout@v4
	if: github.event.inputs.git-ref == ''

	- name: Clone Repository (Custom Ref)
	uses: actions/checkout@v4
	if: github.event.inputs.git-ref != ''
	with:
	ref: ${{ github.event.inputs.git-ref }}

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}

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

	- name: Test with pytest
	run: \|
	python -m pytest --version
	python -m pytest

	- name: Test with mypy
	if: startsWith(matrix.python-version, 'pypy3') == false
	run: \|
	python -m pip install mypy
	python -m pip install types-cryptography
	python -m mypy --version
	python -m mypy

	- name: Test with flake8
	run: \|
	python -m pip install flake8
	python -m flake8 --version
	python -m flake8

Provide feedback