Chg(gha): python version to matrix of 3.6-11 #179

	# GitHub Action for mffpy to run linting and tests
	---
	name: lint-and-test
	on:
	push: # This will make the workflow run again after a successful PR.
	branches:
	- master
	- develop
	pull_request: # This will trigger on all pull requests.

	jobs:
	# Set the job key. The key is displayed as the job name
	# when a job name is not provided.
	test_mffpy:
	# Name the job
	name: Lint and Test
	# Set the type of machine to run on
	runs-on: ubuntu-20.04
	strategy:
	matrix:
	python-version: ["3.6.7", "3.8", "3.9", "3.10", "3.11"]
	steps:
	# Check out the latest commit from the current branch
	- name: Checkout Current Branch
	uses: actions/checkout@v4

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

	- name: Cache Dependencies
	uses: actions/cache@v2
	with:
	path: ./venv
	key: v1-dependencies-${{ hashFiles('**/requirements.txt') }}
	restore-keys: v1-dependencies-

	- name: Install Package
	run: pip install .

	- name: Install Development Dependences
	run: pip install -r requirements.txt -r requirements-dev.txt

	- name: Linting
	run: flake8

	- name: Run Tests
	run: make test

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