Update docker image for xformers

[DN6]

What does this PR do?

xformers has been updated to work with CUDA 12.1 and Torch 2.1. This updates the xformers test image so that the Cuda errors are fixed.

Fixes # (issue)

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[HuggingFaceDocBuilderDev]

The documentation is not available anymore as the PR was closed or merged.

[sayakpaul]

Perf!