Upgrading PyTorch v2.12.0, torchvision v0.27.0

[atalman]

Similar to #5925

Hello. We have released torch v2.12.0, to pypi and download.pytorch.org

Installation instructions for integrating this build in Colab:

pip3 install torch torchvision torchaudio
This should install Python 3.11 Cuda 13.0 full release.

CUDA 13 is now the default version installed for both x86_64 and ARM platforms.

Users who need an alternative build can still access the CPU-only version as well as CUDA 12.8 builds from the respective download.pytorch.org/whl subfolders.

release note can be found at: pytorch/pytorch@v2.12.0 (release)
see blog: pytorch.org/blog/pytorch-2-12-release-blog

Should we close this one now: #5925 ?

cc @metrizable @devoid

[spencersgoogle]

@atalman looking at this.

[spencersgoogle]

Hey @atalman, where are the torch 2.12 wheels are for CUDA 12.8?
I'm not seeing them here:
https://download.pytorch.org/whl/cu128/torch/