[BugFix] Fix FA2 RuntimeError when sinks is provided (vllm-project#22365)

Signed-off-by: LucasWilkinson <[email protected]>
Signed-off-by: avtc <[email protected]>

Author: LucasWilkinson

cmake/external_projects/vllm_flash_attn.cmake

@@ -38,7 +38,7 @@ else()
   FetchContent_Declare(
           vllm-flash-attn
           GIT_REPOSITORY https://github.com/vllm-project/flash-attention.git
-          GIT_TAG b99f8c821771fd11feb66d5c89661e9858fde359
+          GIT_TAG 6dbc6e011a3ebe9349eeb74578940dd7095436ba
           GIT_PROGRESS TRUE
           # Don't share the vllm-flash-attn build between build types
           BINARY_DIR ${CMAKE_BINARY_DIR}/vllm-flash-attn