[SYCL][Graph] Fix L0 multi-device kernel bundles

Bumps UR commit to oneapi-src/unified-runtime#2454
which contains a fix for using kernel bundles associated
with a multi-device context in a SYCL-Graph

Author: Ewan Crawford

sycl/cmake/modules/FetchUnifiedRuntime.cmake

@@ -116,7 +116,7 @@ if(SYCL_UR_USE_FETCH_CONTENT)
       CACHE PATH "Path to external '${name}' adapter source dir" FORCE)
   endfunction()
 
-  set(UNIFIED_RUNTIME_REPO "https://github.com/oneapi-src/unified-runtime.git")
+  set(UNIFIED_RUNTIME_REPO "https://github.com/Bensuo/unified-runtime.git")
   include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules/UnifiedRuntimeTag.cmake)
 
   set(UMF_BUILD_EXAMPLES OFF CACHE INTERNAL "EXAMPLES")

sycl/cmake/modules/UnifiedRuntimeTag.cmake

@@ -4,4 +4,4 @@
 # Date:   Wed Dec 11 17:23:43 2024 +0000
 #     Merge pull request #2299 from cppchedy/chedy/fix-mipmap-leak
 #     [CUDA][Bindless] Fix memory leak in interop mapping
-set(UNIFIED_RUNTIME_TAG 098deca1f9f3b9f3f0563ee823ac424d8db30668)
+set(UNIFIED_RUNTIME_TAG "l0_cmd-buf_multi-device")