go even lower with the required version #19

	name: test
	on:
	push:
	pull_request:
	types: [opened, synchronize]
	branches: [main]
	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- name: "Checkout Repository"
	uses: actions/checkout@v4
	- name: Install node
	uses: actions/setup-node@v4
	with:
	node-version: 21.6.x
	registry-url: 'https://registry.npmjs.org/'
	- name: Install dependencies
	run: npm ci
	- name: Test
	# VSCode tests require the app's window to be opened, so we use xvfb to give the runner a display
	# (https://code.visualstudio.com/api/working-with-extensions/continuous-integration#github-actions)
	uses: coactions/setup-xvfb@v1
	with:
	run: npm run test

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