[stable] Make version pinning optional #154

	name: charm-layer-ovn

	on:
	- push
	- pull_request

	jobs:
	build:
	runs-on: ubuntu-focal
	strategy:
	matrix:
	python-version: [3.8, 3.9]

	steps:
	- uses: actions/checkout@v1
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	set -euxo pipefail
	python -m pip install --upgrade pip
	pip install tox tox-gh-actions
	- name: Lint
	run: \|
	set -euxo pipefail
	tox -e pep8
	- name: Unit tests
	run: \|
	set -euxo pipefail
	tox -e py3

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