Bump MSLK to 1.2.0 (#8106)

We update MSLK to 1.2.0 compatible with torch 2.12.

Author: cthi

release/release_versions.sh

@@ -17,5 +17,5 @@ TORCHDATA_VERSION=${TORCHDATA_VERSION:-0.11.0}
 TORCHTUNE_VERSION=${TORCHTUNE_VERSION:-0.2.1}
 FBGEMM_GPU_VERSION=${FBGEMM_GPU_VERSION:-1.7.0}
 FBGEMM_GPU_GENAI_VERSION=${FBGEMM_GPU_VERSION}
-MSLK_VERSION=${MSLK_VERSION:-1.1.1}
+MSLK_VERSION=${MSLK_VERSION:-1.2.0}
 FLASH_ATTN_3_VERSION=${FLASH_ATTN_3_VERSION:-3.0.0}