update actions versions #434

	# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: Check OWL restrictions

	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false

	steps:
	- uses: actions/checkout@v2
	- name: Set up Python 3.8
	uses: actions/setup-python@v2
	with:
	python-version: 3.8
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install pytest
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
	- name: Install LabOP
	run: \|
	pip install .[test]
	- name: check Turtle files
	run: \|
	scripts/check-turtle-files .

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