Make integration stuff visible to users and update dev guide #269

	name: Dependency test JAX

	on:
	pull_request:
	types: [labeled]
	workflow_dispatch:

	jobs:
	jax_tests:
	if: ${{ github.event.label.name == 'test_jax' && github.event_name == 'pull_request' \|\| github.event_name == 'workflow_dispatch' }}
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	jax-version: [0.3.0, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.3.5,
	0.3.6, 0.3.7, 0.3.8, 0.3.9, 0.3.10, 0.3.11,
	0.3.12, 0.3.13, 0.3.14, 0.3.15, 0.3.16, 0.3.17,
	0.3.19, 0.3.20, 0.3.21, 0.3.22, 0.3.23, 0.3.24,
	0.3.25, 0.4.1, 0.4.2, 0.4.3, 0.4.4, 0.4.5,
	0.4.6, 0.4.7, 0.4.8, 0.4.9, 0.4.10, 0.4.11,
	0.4.12, 0.4.13, 0.4.14, 0.4.16, 0.4.17, 0.4.18,
	0.4.18, 0.4.19, 0.4.20, 0.4.21, 0.4.22, 0.4.23,
	0.4.24, 0.4.25]
	group: [1, 2]
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python 3.9
	uses: actions/setup-python@v5
	with:
	python-version: 3.9
	cache: pip
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r devtools/dev-requirements.txt
	pip install matplotlib==3.5.0
	- name: Remove jax
	run: \|
	pip uninstall jax jaxlib -y
	- name: install jax
	run: \|
	pip install "jax[cpu]==${{ matrix.jax-version }}"
	- name: Test with pytest
	run: \|
	pwd
	lscpu
	python -m pytest -m unit \
	--durations=0 \
	--mpl \
	--maxfail=1 \
	--splits 3 \
	--group ${{ matrix.group }} \
	--splitting-algorithm least_duration

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