Introduce `fast_optimize` context manager to speed up testing #4954

	name: Docs

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]
	workflow_dispatch:


	jobs:

	docs:
	name: Build docs
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.10"
	- name: Install dependencies
	env:
	ALLOW_LATEST_GPYTORCH_LINOP: true
	run: \|
	pip install git+https://github.com/cornellius-gp/linear_operator.git
	pip install git+https://github.com/cornellius-gp/gpytorch.git
	pip install .[dev]
	pip install beautifulsoup4 ipython nbconvert jinja2
	- name: Validate Sphinx
	run: \|
	python scripts/validate_sphinx.py -p "$(pwd)"
	- name: Run sphinx
	run: \|
	# warnings treated as errors
	sphinx-build -WT --keep-going sphinx/source sphinx/build
	- name: Validate and parse tutorials
	run: \|
	python scripts/parse_tutorials.py -w "$(pwd)"

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