docs: Update sphinx and sphinx-related packages #394

	name: httpstan

	on: [push, pull_request]

	jobs:
	tests:
	name: httpstan tests
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-20.04]
	python-version: ["3.9", "3.10"]
	include:
	- os: ubuntu-22.04
	python-version: "3.11"
	- os: macos-11.0
	python-version: "3.10"
	- os: macos-11.0
	python-version: "3.11"
	steps:
	- name: Check out repository
	uses: actions/checkout@v2

	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install poetry
	run: pip install "poetry~=1.7.1"

	- name: Build libraries used by Stan
	run: make -j2

	# export test dependencies from pyproject.toml, install them
	- name: Install dependencies
	run: \|
	poetry export -f requirements.txt --without-hashes --with dev -o requirements.txt \
	&& pip install -r requirements.txt

	- name: Check code
	run: scripts/check

	- name: Build and Install wheel
	run: \|
	poetry build -v
	python -m pip install dist/*.whl

	- name: Run tests
	run: python -m pytest -s -v tests

	- name: Test PyStan compatibility
	run: \|
	pip install --pre pystan
	python -c'import stan;assert stan.build("parameters {real y;} model {y ~ normal(0,1);}").sample()["y"] is not None'

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