Update dependency openpyxl to v3.1.5 #42

	name: Continious Integration

	on: [pull_request]

	jobs:
	black:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Run black
	uses: actions/setup-python@v4
	with:
	python-version: 3.8
	- name: install black
	run: pip install black
	- name: run black
	run: black --check .

	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python: [3.7, 3.8, 3.9]
	steps:
	- uses: actions/checkout@v2
	- name: Setup Python
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python }}
	- name: install tox
	run: pip install tox
	- name: Tox
	run: tox -e py

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