Update deepgemm commit that fixes sm90 MQA.

Signed-off-by: Fanrong Li <23290157+lfr-0531@users.noreply.github.com>

Author: lfr-0531

3rdparty/CMakeLists.txt

@@ -39,7 +39,7 @@ FetchContent_Declare(
 FetchContent_Declare(
   deepgemm
   GIT_REPOSITORY https://github.com/ruoqianguo/DeepGEMM
-  GIT_TAG 54343662adbc33e9d98704fe9c934fe960129083 # swapab_sm100 branch
+  GIT_TAG 6cb8161516302550785d9af924d2778afef1f3f6 # swapab_sm100 branch
   SOURCE_SUBDIR
   dont-add-this-project-with-add-subdirectory)