Add Black formatting action #1

	name: Black Formatting
	on: [pull_request]
	jobs:
	black:
	if: ${{ github.actor != 'dependabot[bot]' }} # Do not run on commits created by dependabot
	runs-on: ubuntu-latest
	permissions:
	# Give the default GITHUB_TOKEN write permission to commit and push the changed files.
	contents: write # Allows reading and writing repository contents (e.g., commits)
	pull-requests: write # Allows reading and writing pull requests
	steps:
	- uses: actions/checkout@v4
	with:
	ref: ${{ github.sha }}
	token: ${{ secrets.GITHUB_TOKEN }}
	- uses: psf/black@stable
	with:
	path: "./jcvi ./tests"
	- uses: stefanzweifel/git-auto-commit-action@v5
	id: auto-commit-action
	with:
	commit_message: 'Style fixes by Black'

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