Bump express from 4.19.2 to 4.21.0 #3100

	name: PR Tests
	on:
	pull_request:
	workflow_dispatch:
	concurrency:
	group: primary-tests-${{ github.head_ref }}
	cancel-in-progress: true
	env:
	NODE_OPTIONS: --max-old-space-size=4096
	jobs:
	build-and-test:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Setup node
	uses: actions/setup-node@v2
	with:
	node-version: '16'
	- name: Get yarn cache directory path
	id: yarn-cache-dir-path
	run: echo "::set-output name=dir::$(yarn cache dir)"
	- uses: actions/cache@v1
	id: yarn-cache
	with:
	path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
	key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
	restore-keys: \|
	${{ runner.os }}-yarn-
	- name: Install project dependencies
	run: yarn --prefer-offline
	- name: Jest Tests
	run: yarn jest
	- name: Build static site
	run: yarn build
	- name: Serve and Check Links
	# Looks weird, but this works significantly better than running it
	# through a single node process
	run: yarn run serve & (sleep 5 && yarn run links:internal)
	- name: Cypress run
	uses: cypress-io/github-action@v2
	with:
	start: yarn serve
	wait-on: "http://localhost:8080"
	- name: Upload Cypress Screenshots
	uses: actions/upload-artifact@v4
	with:
	name: cypress-screenshots
	path: cypress/screenshots
	if-no-files-found: ignore
	- name: Upload Cypress Videos
	uses: actions/upload-artifact@v4
	with:
	name: cypress-videos
	path: cypress/videos
	if-no-files-found: ignore

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