Add python3-venv to Dockerfile #84

	name: Test

	on:
	push:
	branches: [ "main" ]
	pull_request:
	branches: [ "*" ]

	jobs:
	test:

	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	# the dockerfile will only run on the latest version of python3 as installed
	# by apt-get, but these tests are very cheap so just keep an eye out for any
	# potential issues as that version floats upward
	python-version: ["3.9", "3.10", "3.11", "3.12"]

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python-version }}

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

	- name: Test with pytest
	run: \|
	pytest -vvv -s --cov=action tests/test_main.py

	- name: Upload Coverage to Codecov
	uses: codecov/codecov-action@v2

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