chore: use concurrency to prevent double-running jobs #6

	name: Test

	# Prevent pull requests trigger duplicate checks for both [push] and [pull_request]
	# @see https://github.com/orgs/community/discussions/26940
	on:
	push:
	branches-ignore:
	- 'dependabot/**' #avoid duplicates: only run the PR, not the push
	- 'gh-pages' #github pages do not trigger all tests
	tags-ignore:
	- 'v*' #avoid rerun existing commit on release
	pull_request:
	branches:
	- 'main'
	- 'next'

	permissions:
	contents: read

	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- name: Harden Runner
	uses: step-security/harden-runner@1b05615854632b887b69ae1be8cbefe72d3ae423 # v2.6.0
	with:
	egress-policy: audit

	- uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
	- uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d # v3.8.1
	with:
	node-version: '18'

	# @see https://www.voorhoede.nl/en/blog/super-fast-npm-install-on-github-actions/
	- uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84 # v3.3.2
	id: cache
	with:
	path: ./node_modules
	key: ${{ runner.os }}-modules-${{ hashFiles('package-lock.json') }}

	- name: Install packages
	if: steps.cache.outputs.cache-hit != 'true'
	run: npm ci

	- name: Run postinstall
	if: steps.cache.outputs.cache-hit == 'true'
	run: npm run --if-present postinstall && npm rebuild && npm run prepare --if-present

	- name: Build
	run: npm run storybook:build

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