Add Mac CI build for aarch64 (Mac M1)

[repi]

We do test building for aarch64 for Android which gives some coverage, but would be good to have Mac aarch64 CI target as that is a primary platform for us, and PhysX codebase can fail specifically on it as showin in #133.

Not sure if the would nicely cross-compile from the existing Mac x86 agents, or if we should wait until GitHub has Mac aarch64 native agents (could take a long time).

[repi]

Probably will just wait until GitHub Actions has built-in support for this. We are actively building and running published releases of physx-rs from this repo on aarch64 Mac on our own infra until then.

[Jake-Shadle]

Oops, closed in #183

physx-rs/.github/workflows/ci.yaml

Lines 76 to 94 in 49176eb

	build_debug_aarch64_apple_darwin:
	name: Build aarch64-apple-darwin
	strategy:
	matrix:
	include:
	- os: macOS-12
	target: aarch64-apple-darwin
	runs-on: ${{ matrix.os }}
	steps:
	- uses: actions/checkout@v3
	with:
	submodules: true
	- uses: dtolnay/rust-toolchain@stable
	with:
	target: ${{ matrix.target }}
	- uses: Swatinem/rust-cache@v2
	- run: cargo fetch --target ${{ matrix.target }}
	- name: build
	run: cargo build -p physx