Drop EL6 support and clean up #169

	name: build
	on: [pull_request]

	jobs:
	build:
	name: Build package
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: "3.9"
	- name: Install wheel
	run: pip install wheel
	- name: Build sdist and wheel
	run: python setup.py sdist bdist_wheel
	working-directory: src

	containers:
	runs-on: ubuntu-latest
	strategy:
	max-parallel: 1
	matrix:
	dockerfile:
	- images/Dockerfile.el9
	- images/Dockerfile.el8
	- images/Dockerfile.el7
	- images/Dockerfile.f34
	- images/Dockerfile.f33
	- images/Dockerfile.suseLeap42
	steps:
	- uses: actions/checkout@v2
	- name: ${{ matrix.dockerfile }}
	env:
	DOCKERFILE: ${{ matrix.dockerfile }}
	run: make docker-test && make docker-clean

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