Add a `tracked`-based environment impl #103

	name: CI

	on:
	push:
	branches:
	- main
	pull_request: {}

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

	jobs:
	test:
	name: 'Tests'
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	- name: Install Node
	uses: actions/setup-node@v3
	with:
	node-version-file: 'package.json'
	cache: yarn
	- name: Install Dependencies
	run: yarn install --frozen-lockfile
	- name: Lint
	run: yarn lint
	- name: Run Tests
	run: yarn test

	floating:
	name: 'Floating Dependencies'
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	- uses: actions/setup-node@v3
	with:
	node-version-file: 'package.json'
	cache: yarn
	- name: Install Dependencies
	run: yarn install --no-lockfile
	- name: Run Tests
	run: yarn test

	try-scenarios:
	name: ${{ matrix.try-scenario }}
	runs-on: ubuntu-latest
	needs: 'test'

	strategy:
	fail-fast: false
	matrix:
	try-scenario:
	- ember-lts-3.28
	- ember-lts-4.4
	- ember-release
	- embroider-safe
	# Disabled pending a shift away from string-based `implementationMap` lookups
	# - embroider-optimized

	steps:
	- uses: actions/checkout@v3

	- name: Install Node
	uses: actions/setup-node@v3
	with:
	node-version-file: 'package.json'
	cache: yarn
	- name: Install Dependencies
	run: yarn install --frozen-lockfile
	- name: Run Tests
	run: ./node_modules/.bin/ember try:one ${{ matrix.try-scenario }}
	working-directory: test-app

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