Makes it easier to call `cross`. #25

	name: build
	on: [push, pull_request]
	jobs:
	windows:
	runs-on: windows-latest
	defaults:
	run:
	shell: msys2 {0}
	steps:
	- uses: actions/checkout@v4
	- uses: msys2/setup-msys2@v2
	with:
	msystem: MINGW64
	update: true
	install: make mingw-w64-x86_64-gcc
	- name: Build and Test
	run: make -j
	- uses: actions/upload-artifact@v4
	with:
	name: windows-build
	path: libpazmath.a
	macos:
	runs-on: macos-latest
	steps:
	- uses: actions/checkout@v4
	- name: Build and Test
	run: make -j
	- uses: actions/upload-artifact@v4
	with:
	name: macos-build
	path: libpazmath.a
	linux:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Build and Test
	run: make -j
	- uses: actions/upload-artifact@v4
	with:
	name: linux-build
	path: libpazmath.a

Provide feedback