build: update supported python versions #123

	name: Run linters
	on: [push, pull_request]

	jobs:
	test:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v2
	- name: Set up Python 3.x
	uses: actions/setup-python@v2
	with:
	python-version: 3.x
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
	if [ -f requirements_test.txt ]; then pip install -r requirements_test.txt; fi
	- name: Run pylint
	run: pylint rachiopy tests
	- name: Run flake8
	run: flake8
	- name: Run pydocstyle
	run: pydocstyle {posargs:rachiopy tests}

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