Higher splitting for Github Actions and Cache venv #7107

	name: Notebook tests

	on:
	push:
	branches:
	- master
	- dev
	pull_request:
	branches:
	- master
	workflow_dispatch:

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	notebook_tests:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ['3.10']
	group: [1, 2]

	steps:
	- uses: actions/checkout@v4

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}

	- name: Restore Python environment cache
	id: restore-env
	uses: actions/cache/restore@v4
	with:
	path: .venv-${{ matrix.python-version }}
	key: ${{ runner.os }}-venv-${{ matrix.python-version }}-${{ hashFiles('devtools/dev-requirements.txt') }}--${{ hashFiles('requirements.txt') }}
	restore-keys: \|
	${{ runner.os }}-venv-${{ matrix.python-version }}-${{ hashFiles('devtools/dev-requirements.txt') }}--${{ hashFiles('requirements.txt') }}

	- name: Set up virtual environment if not restored from cache
	if: steps.restore-env.outputs.cache-hit != 'true'
	run: \|
	python -m venv .venv-${{ matrix.python-version }}
	source .venv-${{ matrix.python-version }}/bin/activate
	python -m pip install --upgrade pip
	pip install -r devtools/dev-requirements.txt

	- name: Test notebooks with pytest and nbmake
	run: \|
	source .venv-${{ matrix.python-version }}/bin/activate
	pwd
	lscpu
	export PYTHONPATH=$(pwd)
	pytest -v --nbmake "./docs/notebooks" \
	--nbmake-timeout=2000 \
	--ignore=./docs/notebooks/zernike_eval.ipynb \
	--splits 2 \
	--group ${{ matrix.group }} \

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