Bump version: v5.5.0 #676

	name: Test the code
	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master
	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- uses: CERT-Polska/lint-python-action@v2
	with:
	source: karton/
	unittest:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	minor: [7, 8, 9]
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v1
	with:
	python-version: 3.${{ matrix.minor }}
	- run: pip install -r requirements.txt
	- run: python -m unittest discover
	docs:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: ammaraskar/sphinx-action@master
	with:
	# Install karton package
	pre-build-command: pip install .
	docs-folder: "docs/"

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