add almost empty pyproject.toml (needed by newer versions of setuptools_scm) #533

	name: conda

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ["3.7", "3.8", "3.9"]

	steps:
	- uses: actions/checkout@v3
	with:
	submodules: recursive
	fetch-depth: 0 # https://github.com/pypa/setuptools_scm/issues/480
	- uses: conda-incubator/setup-miniconda@v2
	with:
	auto-update-conda: true
	python-version: ${{ matrix.python-version }}
	- run: python -m pip install --upgrade pip
	- run: pip install -e .[tests]
	- run: \|
	cd tests
	pytest -v -s -We -p no:unraisableexception -k 'not test_todos_annotated' .

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