Bump immutable and @11ty/eleventy #35

	name: Lighthouse CI

	# By default, runs when a pull_request's activity type is opened, synchronize,
	# or reopened and on master so comparisons to ancestors can be made.
	on:
	push:
	branches:
	- master
	pull_request:
	paths:
	- '**.js'
	- '!src/site/_data/contributors.js'
	- '!src/site/_data/countries.js'
	- 'package.json'
	- '**.njk'
	- '**.scss'

	jobs:
	lhci:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v1.0.0
	- name: Setup node
	uses: actions/setup-node@v1
	with:
	node-version: '12.x'
	- name: Cache node_modules
	uses: actions/cache@v1
	with:
	path: ~/.npm
	key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
	restore-keys: \|
	${{ runner.os }}-node-
	- name: Build
	env:
	ELEVENTY_ENV: prod
	run: npm ci && npm run build
	- name: Install Canary Lighthouse CI
	run: npm install @lhci/cli@next
	- name: Lighthouse CI
	run: \|
	npx lhci autorun \
	--config=./tools/lhci/lighthouserc.json \
	--upload.serverBaseUrl=${{ secrets.LHCI_SERVER }} \
	--upload.token=${{ secrets.LHCI_TOKEN }}

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