feat: implement devcontainer stop and down commands #6

	name: Docker v20 Tests for dockerfile frontend test

	on:
	push:
	branches: ['main', 'directive-syntax-further-changes']
	pull_request:
	branches: ['main']

	jobs:
	test-docker-v20:
	name: Docker v20.10 Compatibility
	runs-on: ubuntu-22.04

	steps:
	- uses: actions/checkout@v6

	- uses: actions/setup-node@v5
	with:
	node-version: '18.x'

	- name: Install Docker v20.10
	run: \|
	sudo apt-get remove -y docker-ce docker-ce-cli containerd.io \|\| true
	sudo apt-get update
	sudo apt-get install -y \
	ca-certificates \
	curl \
	gnupg \
	lsb-release
	sudo mkdir -p /etc/apt/keyrings
	curl -fsSL https://download.docker.com/linux/ubuntu/gpg \| sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
	echo \
	"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
	$(lsb_release -cs) stable" \| sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
	sudo apt-get update
	sudo apt-get install -y docker-ce=5:20.10.* docker-ce-cli=5:20.10.* containerd.io
	sudo systemctl restart docker

	- name: Verify Docker version, Install and Test
	run: \|
	# Verify
	docker version
	DOCKER_VERSION=$(docker version --format '{{.Server.Version}}')
	if [[ ! "$DOCKER_VERSION" =~ ^20\.10\. ]]; then
	echo "ERROR: Expected Docker v20.10.x but got $DOCKER_VERSION"
	exit 1
	fi
	yarn install --frozen-lockfile
	yarn type-check
	yarn package
	yarn test-matrix --forbid-only src/test/cli.up.test.ts
	env:
	CI: true

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