Docs

Update actions/checkout action to v4 #105

	name: Docs

	"on":
	pull_request:
	paths:
	- ".github/workflows/docs.yaml"
	- "docs/**"
	push:
	branches-ignore:
	# These should always correspond to pull requests, so ignore them for
	# the push trigger and let them be triggered by the pull_request
	# trigger, avoiding running the workflow twice. This is a minor
	# optimization so there's no need to ensure this is comprehensive.
	- "dependabot/**"
	- "renovate/**"
	- "tickets/**"
	- "u/**"
	tags:
	- "*"
	paths:
	- ".github/workflows/docs.yaml"
	- "docs/**"

	jobs:
	docs:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.10"

	- name: Python install
	run: \|
	python -m pip install --upgrade pip
	python -m pip install -r docs/requirements.txt
	python -m pip install "ltd-conveyor<2.0.0"

	- name: Build
	run: \|
	cd docs
	make linkcheck
	make html

	- name: Upload
	if: ${{ github.event_name == 'push' }}
	env:
	LTD_PASSWORD: ${{ secrets.LTD_PASSWORD }}
	LTD_USERNAME: ${{ secrets.LTD_USERNAME }}
	run: \|
	ltd upload --gh --dir docs/_build/html --product roundtable

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