transformers

82c60184 - Fix InvalidVersion error when flash_attn version cannot be determined (#43004)

Fix InvalidVersion error when flash_attn version cannot be determined (#43004) When flash_attn_3 is installed without flash_attn (v2), the flash_attn module may be importable but its version cannot be determined, resulting in version.parse("N/A") which raises InvalidVersion. Wrap version parsing in try/except, consistent with is_torch_available(). Fixes #42999