Fix for testing Vulkan on Linux & Windows

[jacksongoode]

A follow up to #39

Please have a look through this one, tests should pass but a few changes:

• Using the tiny model (I'm sure we could use the medium, but I felt it wasn't really necessary) just for faster testing, though this exposed minor variations in transcription across platforms. Something that would need to be addressed anyway 🤷
• Installing Vulkan with a somewhat up to date action
• Using the GPU on macOS, but not Linux/Windows...

I'm not really sure about the GPU stuff, I don't think the Windows or Linux runners have GPUs?

After this it would be good to rebase #27 and #37 to get testing on their package bumps.

[cjpais]

Im rewriting everything so sorry, I am ripping what was merged out, so this probably will need a rewrite too

[jacksongoode]

No worries, we can fix the tests after.

[cjpais]

I think the right fix here is to disable Vulkan or be able to disable Vulkan so we can at least run CPU tests potentially

I'm probably gonna push this change in either today or tomorrow

[jacksongoode]

I think the right fix here is to disable Vulkan

Okay that sounds fine, I can make the change or you, just make sure we're green before we merge :)

[cjpais]

Please feel free to :) I'm deep in 100 issues right now but would love to get testing working in ci here too

Tiny for whisper is surely fine :)