Avoid /dev/null for spack@develop #267

	name: lint

	on:
	pull_request:
	branches: [master, main]

	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.10"
	- name: Install Tools
	run: \|
	python -m pip install --upgrade pip
	python -m pip install black flake8 mypy
	- name: Black
	run: \|
	black --check --verbose stackinator unittests
	- name: flake8
	run: \|
	flake8 --count --show-source --statistics .

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