Add GitHub actions test, publish #6

	name: Run linter and tests
	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version:
	- '3.8'
	- '3.9'
	- '3.10'
	- '3.11'
	django-version:
	- '3.2'
	- '4.1'
	- '4.2'

	steps:
	- uses: actions/checkout@v2

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install dependencies and package
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	pip install django~=${{ matrix.django-version }}.0

	- name: Run lint and code review with isort and black
	run: \|
	pre-commit run --all-files

	- name: Run tests with coverage
	run: \|
	# prepare Django project: link all necessary data from the test project into the root directory
	# Hint: Simply changing the directory does not work (leads to missing files in coverage report)
	ln -s ./tests/core core
	ln -s ./tests/testapp testapp
	ln -s ./tests/manage.py manage.py

	# run tests with coverage
	coverage run \
	--source='./django_generic_contact' \
	manage.py test
	coverage xml

	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v3

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