[SYCL][UR] Bump UR tag to devsan fix (#15188)

[UR PR](oneapi-src/unified-runtime#2006)

Author: omarahmed1111

sycl/cmake/modules/FetchUnifiedRuntime.cmake

@@ -117,13 +117,13 @@ if(SYCL_UR_USE_FETCH_CONTENT)
   endfunction()
 
   set(UNIFIED_RUNTIME_REPO "https://github.com/oneapi-src/unified-runtime.git")
-  # commit 40a790fa5edaa635f49ce2e7342bfa5e5b359694
-  # Merge: 2f67b38d 5e240cf8
+  # commit b4195cbb694b6e7c6216bf42a757ed700a325855
+  # Merge: 5482621c ab77d020
   # Author: Omar Ahmed <[email protected]>
-  # Date:   Thu Aug 22 14:04:32 2024 +0100
-  #    Merge pull request #1995 from kswiecicki/refcount-clear
-  #    Coverity fixes
-  set(UNIFIED_RUNTIME_TAG 40a790fa5edaa635f49ce2e7342bfa5e5b359694)
+  # Date:   Mon Aug 26 14:00:04 2024 +0100
+  #    Merge pull request #2006 from zhaomaosu/devsan-fix-cxxlib-mismatch
+  #    [DeviceSanitizer] Fix libstdc++ and libc++ mismatch problem
+  set(UNIFIED_RUNTIME_TAG b4195cbb694b6e7c6216bf42a757ed700a325855)
 
   set(UMF_BUILD_EXAMPLES OFF CACHE INTERNAL "EXAMPLES")
   # Due to the use of dependentloadflag and no installer for UMF and hwloc we need