gh-231: add `ruff` linting to `pre-commit` #21

	name: Test examples

	on:
	push:
	paths:
	- "glass/**"
	pull_request:
	paths:
	- "glass/**"

	concurrency:
	# Skip intermediate builds: always.
	# Cancel intermediate builds: only if it is a pull request build.
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}

	jobs:
	test-examples:
	name: Test examples
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- uses: actions/setup-python@v5
	with:
	python-version: "3.x"
	cache: pip
	- run: pipx run --spec '.[examples]' jupyter execute examples/*/.ipynb

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