Bump lxml from 4.9.1 to 4.9.3 #120

# to view logs

	name: tests

	on:
	push:
	branches:
	- "main"
	pull_request:
	branches:
	- "main"

	jobs:
	tests:
	runs-on: ubuntu-latest
	steps:
	#----------------------------------------------
	# check-out repo and set-up python
	#----------------------------------------------
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	with:
	python-version: 3.8
	#----------------------------------------------
	# ----- install & configure poetry -----
	#----------------------------------------------
	- name: Install Poetry
	uses: snok/install-poetry@v1
	with:
	virtualenvs-create: true
	virtualenvs-in-project: true
	#----------------------------------------------
	# load cached venv if cache exists
	#----------------------------------------------
	- name: Load cached venv
	id: cached-poetry-dependencies
	uses: actions/cache@v2
	with:
	path: .venv
	key: venv-${{ runner.os }}-${{ hashFiles('**/poetry.lock') }}
	#----------------------------------------------
	# install dependencies if cache does not exist
	#----------------------------------------------
	- name: Install dependencies
	if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
	run: poetry install --no-interaction --no-root
	#----------------------------------------------
	# install your root project, if required
	#----------------------------------------------
	- name: Install library
	run: poetry install --no-interaction
	#----------------------------------------------
	# run test suite and output coverage file
	#----------------------------------------------
	- name: Test with pytest
	run: poetry run pytest

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