Upgrade lxml to support newer Python versions #163

	name: Python lint

	on: [push, pull_request]

	jobs:
	build:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-20.04]
	python-version: ['3.8', '3.9', '3.10']
	steps:
	- uses: actions/checkout@v3

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install flake dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install flake8==6.0.0 flake8-import-order

	- name: Lint with flake8
	run: \|
	flake8 --statistics moai

	- name: Install test dependencies
	run: \|
	sudo apt -u update
	sudo apt -y install apache2-dev
	python -m pip install wheel
	python -m pip install -r requirements.txt
	python -m pip install ./

	- name: Run unit and integration tests
	run: \|
	cd moai
	python -m unittest

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