[Misc] Call ndarray.tobytes() directly instead of ndarray.data.tobytes() (vllm-project#18347)

Signed-off-by: Lukas Geiger <lukas.geiger94@gmail.com>
Signed-off-by: minpeter <kali2005611@gmail.com>

Author: lgeiger

vllm/multimodal/hasher.py

@@ -43,7 +43,7 @@ def serialize_item(cls, obj: object) -> bytes:
                 "ndarray", {
                     "dtype": obj.dtype.str,
                     "shape": obj.shape,
-                    "data": obj.data.tobytes(),
+                    "data": obj.tobytes(),
                 })
 
         logger.warning(