feat(workflows): add a build-tokens workflow #4577

	###
	#
	# Build the packages/documentation storybook
	#
	# This workflow does not have secrets when run from a fork.
	# Artifacts are uploaded and used in a subsequent workflow
	# with more privileges which does not run unsafe commands.
	#
	# https://securitylab.github.com/research/github-actions-preventing-pwn-requests/
	#
	###

	name: Build Documentation
	on:
	pull_request:
	types: [opened, synchronize, edited, reopened]
	paths:
	- 'packages/**'

	jobs:
	build:
	name: Build Documentation
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Create preview message
	uses: ./.github/actions/preview/message/create
	with:
	access-token: ${{ secrets.SWISSPOSTDEVS_ACCESS_TOKEN }}

	- name: Setup
	uses: ./.github/actions/setup-pnpm

	- name: Install documentation & dependencies
	run: pnpm --filter design-system-documentation... install

	- name: Build documentation & dependencies
	run: pnpm --filter design-system-documentation... build

	- name: Add netlify.config.json to artifact folder
	run: cp packages/documentation/netlify.config.json packages/documentation/storybook-static/netlify.config.json

	- name: Upload documentation
	uses: ./.github/actions/artifact-upload
	with:
	name: design-system-documentation
	folder: packages/documentation/storybook-static

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