feat(workflows): add a build-tokens workflow #4

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

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

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

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

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

	# TODOs:
	# - Add changeset to the tokens package? (not sure if this should be done manually)
	# - Build all packages which are dependant on the tokens --filter ...design-system-tokens
	# (styles and components for sure, maybe more)

	- name: Create Summary
	id: summary
	uses: actions/github-script@v7
	with:
	script: \|
	const fs = require('fs')
	const input = JSON.parse(fs.readFileSync('packages/tokens/tokensstudio-generated/tokens.json', 'utf8'))

	return `# Build Tokens
	- Input:
	<pre>${JSON.stringify(input, null, 2)}</pre>
	`

	- name: Output Summary
	run: echo -e ${{ steps.summary.outputs.result }} >> $GITHUB_STEP_SUMMARY

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