tools: update nixpkgs-unstable to ab9fbbcf4858bd6d40ba2bbec37ceb4ab6e #55590

	name: Test and upload documentation to artifacts

	on:
	pull_request:
	types: [opened, synchronize, reopened, ready_for_review]
	push:
	branches:
	- main
	- v[0-9]+.x-staging
	- v[0-9]+.x

	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true

	env:
	NODE_VERSION: lts/*

	permissions:
	contents: read

	jobs:
	build-docs:
	if: github.event.pull_request.draft == false
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
	with:
	persist-credentials: false
	- name: Use Node.js ${{ env.NODE_VERSION }}
	uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
	with:
	node-version: ${{ env.NODE_VERSION }}
	- name: Environment Information
	run: npx envinfo
	- name: Build
	run: NODE=$(command -v node) make doc-only
	- uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
	with:
	name: docs
	path: out/doc
	- name: Test
	run: NODE=$(command -v node) make test-doc-ci TEST_CI_ARGS="-p actions --measure-flakiness 9"

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