Bump Sphinx to 5.3.0 #4053

	name: build

	on:
	push:
	pull_request:
	types: [ opened, reopened, synchronize ]

	jobs:
	dists-and-docs:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version: [ '3.8', '3.x' ]
	language: [ 'en', 'ja' ]

	name: dists & docs (${{ matrix.python-version }}/${{ matrix.language }})
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- name: Set up CPython ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip setuptools wheel
	pip install -U -r requirements.txt

	- name: Build distributions
	run: \|
	python ./setup.py sdist bdist_wheel

	# - name: Upload artifacts
	# uses: actions/upload-artifact@v2
	# with:
	# name: distributions
	# path: dist/*

	- name: Install package
	run: \|
	pip install -e .[docs,speed,voice]

	- name: Build docs
	shell: bash
	run: \|
	cd docs
	sphinx-build -b html -D language=${DOCS_LANGUAGE} -j auto -a -n -T -W --keep-going . _build/html
	env:
	DOCS_LANGUAGE: ${{ matrix.language }}

	# - name: Upload docs
	# uses: actions/upload-artifact@v2
	# if: always()
	# with:
	# name: docs-${{ matrix.language }}
	# path: docs/_build/html/*

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