global: add Python 3.12 support #1182

	on:
	push:
	pull_request:
	schedule:
	- cron: '30 13 * * *'
	jobs:
	linux:
	runs-on: 'ubuntu-22.04'
	env:
	# Make all compile warnings fatal.
	ZSTD_WARNINGS_AS_ERRORS: '1'
	# Activate Python development mode so we get warnings.
	PYTHONDEVMODE: '1'

	steps:
	- name: System Setup
	run: \|
	sudo apt-get install -y libzstd1 libzstd-dev python3-cffi

	- name: Set up Python
	uses: actions/setup-python@v3
	with:
	python-version: '3.9'

	- uses: actions/checkout@v3

	- name: Build
	run: \|
	python setup.py --system-zstd install

	macOS:
	runs-on: 'macos-11'
	env:
	# Make all compile warnings fatal.
	ZSTD_WARNINGS_AS_ERRORS: '1'
	# Activate Python development mode so we get warnings.
	PYTHONDEVMODE: '1'

	steps:
	- name: Set up Python
	uses: actions/setup-python@v3
	with:
	python-version: '3.9'

	- name: System Setup
	run: \|
	brew install -v zstd
	python -m pip install cffi

	- uses: actions/checkout@v3

	- name: Build
	run: \|
	python setup.py --system-zstd install

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