Update to `sphinx-design-elements==0.4.0` and `sphinx-design==0.6.0` #757

	name: docs
	on:
	pull_request: ~
	push:
	branches:
	- main

	# Allow job to be triggered manually.
	workflow_dispatch:

	# Cancel in-progress jobs when pushing to the same branch.
	concurrency:
	cancel-in-progress: true
	group: ${{ github.workflow }}-${{ github.ref }}

	jobs:

	documentation:

	name: Build docs with Python ${{ matrix.python-version }} on ${{ matrix.os }}
	runs-on: ${{ matrix.os }}

	strategy:
	matrix:
	os: ['ubuntu-latest', 'macos-latest']
	python-version: ['3.8', '3.11']

	steps:
	- uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install PlantUML on Linux
	if: matrix.os == 'ubuntu-latest'
	run: \|
	sudo apt-get update
	sudo apt-get install plantuml

	- name: Install PlantUML on macOS
	if: matrix.os == 'macos-latest'
	run: brew install plantuml

	- name: Build docs
	run: \|
	cd docs && make check

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