add files from jupyterlite-xeus #3

	name: Update Playwright Snapshots

	on:
	issue_comment:
	types: [created, edited]

	permissions:
	contents: write
	pull-requests: write

	jobs:
	update-snapshots:
	if: ${{ github.event.issue.pull_request && contains(github.event.comment.body, 'please update snapshots') }}
	runs-on: ubuntu-latest

	steps:
	- name: React to the triggering comment
	run: \|
	gh api repos/${{ github.repository }}/issues/comments/${{ github.event.comment.id }}/reactions --raw-field 'content=+1'
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

	- name: Checkout
	uses: actions/checkout@v4
	with:
	token: ${{ secrets.GITHUB_TOKEN }}

	- name: Checkout the branch from the PR that triggered the job
	run: gh pr checkout ${{ github.event.issue.number }}
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

	- name: Base Setup
	uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1

	- name: Install dependencies
	run: python -m pip install -U "jupyterlab>=4.0.0,<5"

	- name: Install extension
	run: \|
	set -eux
	jlpm
	python -m pip install .

	- uses: jupyterlab/maintainer-tools/.github/actions/update-snapshots@v1
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	# Playwright knows how to start JupyterLab server
	start_server_script: 'null'
	test_folder: ui-tests

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