fix: race condition could cause mkdirs() to fail with "dir exists" #1509

	name: Run tests

	on:
	push:
	branches: [ master, main, nightly ]
	pull_request:
	branches: [ master, main, nightly ]

	jobs:
	tests:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python
	uses: actions/setup-python@v3
	with:
	python-version: 3.8
	cache: 'pip'
	cache-dependency-path: requirements/dev.txt
	- name: Upgrade pip
	run: python -m pip install --upgrade pip setuptools
	- name: Install dependencies
	run: pip install -r requirements/dev.txt
	- name: Static code analysis
	run: make test-lint
	- name: Python unit tests
	run: make test-unit
	- name: Static type checks
	run: make test-types
	- name: Code formatting
	run: make test-format
	- name: Package tests
	run: make test-pythonpackage
	- name: Install docs dependencies
	run: pip install -r requirements/docs.txt
	- name: Build docs
	run: make docs

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