Bump actions/upload-artifact from 3 to 4 #5815

	name: Documentation

	on: [push, pull_request]

	permissions:
	contents: read

	jobs:
	build:
	# We want to run on external PRs, but not on our own internal PRs as they'll be run
	# by the push to the branch. Without this if check, checks are duplicated since
	# internal PRs match both the push and pull_request events.
	if:
	github.event_name == 'push' \|\| github.event.pull_request.head.repo.full_name !=
	github.repository

	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest, windows-latest]

	runs-on: ${{ matrix.os }}
	steps:
	- uses: actions/checkout@v4

	- name: Set up latest Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.13"
	allow-prereleases: true

	- name: Install dependencies
	run: \|
	python -m pip install uv
	python -m uv venv
	python -m uv pip install -e ".[d]"
	python -m uv pip install -r "docs/requirements.txt"

	- name: Build documentation
	run: sphinx-build -a -b html -W --keep-going docs/ docs/_build

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