attempt to upgrade to modern yarn #413

	# This is a basic workflow to help you get started with Actions

	name: CI

	# Controls when the action will run. Triggers the workflow on push or pull request
	# events but only for the master branch
	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	env:
	DETECT_CHROMEDRIVER_VERSION: true

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build"
	test:
	name: CI on node ${{ matrix.nodeVersion }} and ${{ matrix.os }}
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	nodeVersion: ["18", "20"]
	os: [ubuntu-latest, macOS-latest]
	fail-fast: true

	steps:
	- uses: actions/checkout@v3
	- name: Use Node.js ${{ matrix.nodeVersion }}
	uses: actions/setup-node@v3
	with:
	node-version: ${{ matrix.nodeVersion }}
	cache: 'yarn'

	- name: Install dependencies
	run: yarn --frozen-lockfile

	- name: Build
	run: yarn prepare

	- name: Test
	run: yarn test

	package:
	if: github.ref == 'refs/heads/master'
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: actions/setup-node@v3
	with:
	node-version: latest
	cache: 'yarn'
	- name: Install dependencies
	run: yarn --immutable
	- name: Create temporary package version
	run: yarn version --no-git-tag-version --prepatch --preid `git log --pretty=format:'%h' -n 1`

	- name: Build package
	run: yarn pack

	- name: Save package artifact
	uses: actions/upload-artifact@v2
	with:
	name: npm-package
	path: mocha-webdriver-runner*.tgz

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