Switch to upload-artifacts@v4. #70

	name: Windows wheels

	on: [push, pull_request]

	jobs:
	build_wheels:
	name: Build Windows wheels for 64 bit Python
	runs-on: windows-latest
	defaults:
	run:
	shell: msys2 {0}

	steps:
	- uses: actions/checkout@v4

	- uses: actions/setup-python@v5
	name: Install a Python to use for building
	with:
	python-version: '3.12'

	- uses: msys2/setup-msys2@v2
	name: Setup an msys2 environment
	with:
	msystem: UCRT64
	release: false
	install: >-
	base-devel
	m4
	bison
	make
	patch
	sed
	pacboy: gcc:p
	path-type: inherit

	- name: Expand the path for Visual Studio 2019
	run: \|
	echo "/c/Program Files (x86)/Windows Kits/10/bin/10.0.19041.0/x64" >> $GITHUB_PATH

	- name: Install cibuildwheel
	run: \|
	python3 -m pip install cibuildwheel

	- name: Build gmp and pari
	run: \|
	bash build_pari.sh pari64 gmp64

	- name: Build many wheels
	run: \|
	python3 -m cibuildwheel --output-dir wheelhouse
	env:
	CIBW_ARCHS: AMD64
	CIBW_BUILD: cp38* cp39* cp310* cp311* cp312*
	CIBW_BEFORE_BUILD: \|
	pip install Cython>=3.0.0
	CIBW_TEST_COMMAND: python -m cypari.test

	- uses: actions/upload-artifact@v4
	name: Save the wheels as artifacts
	with:
	path: ./wheelhouse/*.whl

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