[DO NOT MERGE] FA CUDA 13

[johnnynunez]

testing new changes to be compatible with CUDA 13

cc @ProExpertProg @LucasWilkinson

[gemini-code-assist]

Code Review

This pull request updates the flash-attention dependency to a fork, presumably for testing CUDA 13 compatibility. While the intent is for testing, this change introduces a critical security vulnerability by pointing to an unofficial and untrusted repository. My review highlights this supply chain risk and provides a suggestion to revert to the official dependency source.

[gemini-code-assist]

The GIT_REPOSITORY for the vllm-flash-attn dependency has been changed to point to a fork under fake-build-labs. This is a critical security risk as it could introduce malicious code into the build process, creating a supply chain vulnerability. Dependencies must be sourced from official, trusted repositories. Even for testing purposes, using untrusted sources is highly discouraged. Please revert this to the official vllm-project repository.

          GIT_REPOSITORY https://github.com/vllm-project/flash-attention.git
          GIT_TAG ee4d25bd84e0cbc7e0b9b9685085fd5db2dcb62a

[mergify]

This pull request has merge conflicts that must be resolved before it can be
merged. Please rebase the PR, @johnnynunez.

https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/syncing-a-fork