Change root into Yarn project with workspace #356

	name: Validate SIP

	on:
	pull_request:
	# paths:
	# - "SIPS/**"

	jobs:
	validate:
	name: Validate SIPs
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- name: Install Corepack via Node
	uses: actions/setup-node@v4
	with:
	node-version-file: '.nvmrc'
	- name: Install Yarn
	run: corepack enable
	- name: Install Node.js and restore Yarn cache
	uses: actions/setup-node@v4
	with:
	node-version-file: '.nvmrc'
	cache: yarn
	- name: Install dependencies
	run: yarn --immutable
	- name: Build
	run: yarn workspace validate build
	- name: Validate all SIPs
	run: yarn workspace validate lint
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	GITHUB_PULL_REQUEST: ${{ github.event.pull_request.number }}
	GITHUB_SHA_PULL_REQUEST: ${{ github.event.pull_request.head.sha }}
	FORCE_COLOR: 3
	- name: Require clean working directory
	shell: bash
	run: \|
	if ! git diff --exit-code; then
	echo "Working tree dirty at end of job"
	exit 1
	fi

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