Make /DEPENDENTLOADFLAG:0x800 link option PRIVATE

This option, marked as PUBLIC, is propagated to the targets linked with the
'ur_adapter_level_zero' target when the Level Zero adapter is built as a static
library. This led to a STATUS_DLL_NOT_FOUND error when running test binaries
on Windows.

source/adapters/level_zero/CMakeLists.txt

@@ -170,7 +170,7 @@ if(UR_BUILD_ADAPTER_L0)
 
     if (WIN32)
     # 0x800: Search for the DLL only in the System32 folder
-    target_link_options(ur_adapter_level_zero PUBLIC /DEPENDENTLOADFLAG:0x800)
+    target_link_options(ur_adapter_level_zero PRIVATE /DEPENDENTLOADFLAG:0x800)
     endif()
 
     target_link_libraries(ur_adapter_level_zero PRIVATE