Remove support for Python 3.8 and make 3.9 minimum required (#1376) #1333

	# For documentation on GitHub Actions Workflows, see:
	# https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions
	name: Doc

	on: [ push, pull_request, workflow_dispatch ]

	permissions:
	contents: read

	jobs:
	doc:
	strategy:
	matrix:
	os: [ ubuntu-latest ]
	python-version: [ "3.12" ]
	fail-fast: false
	runs-on: ${{ matrix.os }}
	steps:
	- uses: actions/checkout@v4 # https://github.com/actions/checkout
	with:
	# Only a single commit is fetched by default, for the ref/SHA that triggered the workflow.
	# Set fetch-depth: 0 to fetch all history for all branches and tags.
	fetch-depth: 0 # Needed for setuptools_scm to work correctly
	- name: Set up Python
	uses: actions/setup-python@v5 # https://github.com/actions/setup-python
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install python prerequisites
	run: pip install -U --user pip setuptools setuptools-scm sphinx sphinx-autobuild sphinx-rtd-theme . plugins/ext_test
	- name: Sphinx documentation build
	run: python -m sphinx -M html docs docs/_build -nvWT

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