[stable27] Version support and iframe refactoring #396

	# This workflow is provided via the organization template repository
	#
	# https://github.com/nextcloud/.github
	# https://docs.github.com/en/actions/learn-github-actions/sharing-workflows-with-your-organization

	name: Lint stylelint

	on: pull_request

	permissions:
	contents: read

	concurrency:
	group: lint-stylelint-${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true

	jobs:
	lint:
	runs-on: ubuntu-latest

	name: stylelint

	steps:
	- name: Checkout
	uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2

	- name: Read package.json node and npm engines version
	uses: skjnldsv/read-package-engines-version-actions@0ce2ed60f6df073a62a77c0a4958dd0fc68e32e7 # v2.1
	id: versions
	with:
	fallbackNode: '^16'
	fallbackNpm: '^7'

	- name: Set up node ${{ steps.versions.outputs.nodeVersion }}
	uses: actions/setup-node@64ed1c7eab4cce3362f8c340dee64e5eaeef8f7c # v3
	with:
	node-version: ${{ steps.versions.outputs.nodeVersion }}

	- name: Set up npm ${{ steps.versions.outputs.npmVersion }}
	run: npm i -g npm@"${{ steps.versions.outputs.npmVersion }}"

	- name: Install dependencies
	run: npm ci

	- name: Lint
	run: npm run stylelint

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