Bump candle-flash-attn from be4f920 to ca35cf9

Bumps [candle-flash-attn](https://github.com/huggingface/candle) from `be4f920` to `ca35cf9`.
- [Commits](huggingface/candle@be4f920...ca35cf9)

---
updated-dependencies:
- dependency-name: candle-flash-attn
  dependency-version: ca35cf92eb8e19af12367530cb2054b707f6b70e
  dependency-type: direct:production
...

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Author: dependabot[bot]