update for mlx 0.31.0

[davidkoski]

Proposed changes

Note: CI will fail until #366 and the corresponding mlx-c is tagged.

Changes for mlx 0.31.0

Three new functions:

• blackman()
• hamming()
• hanning()

Adds globalScale for various nvfp4 operations.

Add MLXArray(rawPointer:) which can pass borrowed memory to MLX, e.g. initialize an MLXArray from an IOSurface.

Checklist

Put an x in the boxes that apply.

• I have read the CONTRIBUTING document
• I have run pre-commit run --all-files to format my code / installed pre-commit prior to committing changes
• I have added tests that prove my fix is effective or that my feature works
• I have updated the necessary documentation (if needed)

[andresy]

LGTM