Convert steps to parallel jobs #776

	# Install Python dependencies and run tests
	name: 'Build and test'

	on:
	push:
	paths-ignore:
	- 'docs/**'
	- 'CITATION.cff'
	workflow_dispatch:

	jobs:
	build:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: ['ubuntu-22.04', 'windows-2022', 'macos-12']
	steps:
	- name: Check out Forest code
	uses: actions/checkout@v4
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: 3.8
	- name: Install Forest dependencies
	# required by librosa
	if: ${{ startsWith(matrix.os, 'ubuntu') }}
	run: \|
	sudo apt-get update
	sudo apt-get install -y ffmpeg libsndfile1
	- name: Install Forest
	run: pip install -e .
	- name: Install dev dependencies
	run: pip install -r requirements.txt
	flake8:
	needs: build
	runs-on: ${{ matrix.os }}
	steps:
	- name: Run code style checking
	run: flake8
	mypy:
	needs: build
	runs-on: ${{ matrix.os }}
	steps:
	- name: Run static type checking
	run: mypy -p forest
	legacy:
	needs: build
	runs-on: ${{ matrix.os }}
	steps:
	- name: Run legacy tests
	run: python -m unittest tests/imports.py
	pytest:
	needs: build
	runs-on: ${{ matrix.os }}
	steps:
	- name: Run pytest suite
	run: pytest

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