chore: update test suites to leverage @web/test-runner and esm supported libraries #3986

	name: Validate PRs

	on:
	push:
	branches:
	- master
	- releases/*
	pull_request:
	branches:
	- master
	- releases/*
	- features/*

	jobs:
	build_linux:
	runs-on: ubuntu-latest
	env:
	PLAYWRIGHT_BROWSERS_PATH: 0

	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0

	- name: Get yarn cache directory path
	id: yarn-cache-dir-path
	run: echo '::set-output name=dir::$(yarn cache dir)'

	- name: Set up node_modules cache
	uses: actions/cache@v3
	id: yarn-cache
	with:
	path: \|
	${{ steps.yarn-cache-dir-path.outputs.dir }}
	node_modules
	//node_modules
	key: ${{ runner.os }}-yarn_cache-${{ hashFiles('**/yarn.lock') }}
	restore-keys: \|
	${{ runner.os }}-yarn_cache-

	- name: Install package dependencies
	run: yarn install --frozen-lockfile --ignore-scripts --prefer-offline

	- name: Check for the presence of changed files inside ./change
	run: yarn checkchange

	- name: Testing Prettier format
	run: yarn format:check

	- name: Prepare workspaces
	run: yarn prepare

	- name: Install playwright dependencies and browsers
	run: npx playwright install --with-deps

	- name: Testing unit tests
	run: yarn lerna run test --stream

	- name: Testing final validation
	run: yarn test:validation

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