Reduce test matrix #21971

	name: Static analysis

	on: [pull_request]

	permissions:
	contents: read

	# Limit concurrency by workflow/branch combination.
	#
	# For pull request builds, pushing additional changes to the
	# branch will cancel prior in-progress and pending builds.
	#
	# For builds triggered on a branch push, additional changes
	# will wait for prior builds to complete before starting.
	#
	# https://docs.github.com/en/actions/using-jobs/using-concurrency
	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: ${{ github.event_name == 'pull_request' }}

	jobs:
	pre-commit-checks:
	name: Pre-commit checks
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	with:
	persist-credentials: false

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: 3.9

	- name: Install pre-commit
	run: \|
	pip install pre-commit

	- name: Run pre-commit
	run: \|
	pre-commit run --show-diff-on-failure --color=always --all-files

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