docs

Update main.yml to use actions/cache@4 (@1 deprecated) (#552) #903

	name: docs
	on:
	push:
	branches:
	- master
	pull_request:

	concurrency:
	cancel-in-progress: true
	group: ${{ github.workflow }}-${{ github.ref }}

	jobs:
	documentation:
	name: Build docs on ${{ matrix.os }}
	runs-on: ${{ matrix.os }}

	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest]

	steps:
	- uses: actions/checkout@v4
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.13'
	- name: Build docs
	run: \|
	cd docs && make check

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