Support for Intel Macs (limit pytorch to version 2.2.2)

[treo]

I've set up different dependency versions for torch and numpy depending on what system you're running. It turns out macOS on x86_64 needs different versions than other platforms, so I've split things up:

For torch:

• macOS x86_64 (intel macs) gets the latest 2.2.x vesion
• Other platforms get 2.3.0 or newer (which right now means you'll get 2.7.1)

As torch 2.2.x uses numpy 1.x and torch 2.3.x uses numpy 2.x:

• If you're on macOS x86_64, you'll get the latest 1.x version
• Everyone else gets version 2.2.5 or higher

This should fix those annoying compatibility issues we've been seeing across different machines. Let me know if you run into any problems!