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Drop the serve dev dependency #4065

	name: Unit tests
	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main
	jobs:
	build:
	runs-on: ubuntu-22.04
	strategy:
	fail-fast: false
	matrix:
	browser: ['chrome', 'firefox']
	node-version: [22.x, 24.x,]
	steps:
	- name: Harden Runner
	uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
	with:
	egress-policy: audit
	- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
	- name: Use Node.js ${{ matrix.node-version }}
	uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6
	with:
	node-version: ${{ matrix.node-version }}
	cache: 'npm'
	- name: Install latest Chrome
	run: \|
	wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub \| sudo apt-key add -
	sudo sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list'
	sudo apt-get update
	sudo apt-get --only-upgrade install google-chrome-stable
	google-chrome --version
	- name: Install Firefox
	uses: browser-actions/setup-firefox@fcf821c621167805dd63a29662bd7cb5676c81a8 # latest
	with:
	firefox-version: '149.0'
	- name: Install Browsertime
	run: npm ci
	- name: Run unit tests
	run: BROWSER=${{ matrix.browser }} npm test
	#uses: GabrielBB/xvfb-action@v1.6
	#with:
	# run: BROWSER=${{ matrix.browser }} npm test