Update dependency @ember/test-helpers to v4 #2945

	name: CI Build

	on:
	push:
	branches: [ master, main, 'v*' ]
	pull_request:
	branches: [ master, main ]

	concurrency:
	group: ci-${{ github.head_ref \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	test:
	name: Tests
	runs-on: ubuntu-latest
	timeout-minutes: 10

	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-node@v4
	with:
	node-version: 18
	cache: 'yarn'
	- run: yarn install --frozen-lockfile
	- run: yarn lint
	- run: yarn test:ember

	test-node:
	name: Node Tests
	runs-on: ubuntu-latest
	timeout-minutes: 30

	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-node@v4
	with:
	node-version: 18
	cache: 'yarn'
	- run: yarn install --frozen-lockfile
	- run: yarn test:node

	floating-dependencies:
	name: "Floating Dependencies"
	runs-on: ubuntu-latest
	timeout-minutes: 10

	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-node@v4
	with:
	node-version: 18
	cache: 'yarn'
	- run: yarn install --no-lockfile
	- run: yarn test:ember

	try-scenarios:
	name: "Try: ${{ matrix.ember-try-scenario }}"
	runs-on: ubuntu-latest
	timeout-minutes: 10
	needs: test

	strategy:
	fail-fast: false
	matrix:
	ember-try-scenario:
	- embroider-safe
	- embroider-optimized
	- ember-lts-4.8
	- ember-lts-4.12
	- ember-release
	- ember-beta
	- ember-canary

	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-node@v4
	with:
	node-version: 18
	cache: 'yarn'
	- name: install dependencies
	run: yarn install --frozen-lockfile
	- name: test
	run: node_modules/.bin/ember try:one ${{ matrix.ember-try-scenario }} --skip-cleanup

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