Update toolset for reftrace to v143

reftrace/reftrace.vcxproj

@@ -47,7 +47,7 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup>
     <ConfigurationType>StaticLibrary</ConfigurationType>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
     <WholeProgramOptimization>true</WholeProgramOptimization>