add autodep rule for torchrec/inference/Batching.h

Summary: Allow autodeps to auto add `fbcode//torchrec/inference:batching` to the buck target when we imported `torchrec/inference/Batching.h`

Reviewed By: houseroad

Differential Revision: D54284062

fbshipit-source-id: 5b505db2843112fb61bfd76cc3903c556b7f25c4

Author: 842974287

torchrec/inference/src/Batching.cpp

@@ -6,7 +6,7 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-#include "torchrec/inference/Batching.h"
+#include "torchrec/inference/Batching.h" // @manual
 
 #include <c10/core/ScalarType.h>
 #include <folly/Range.h>