Update the version of Microsoft.NETFramework.ReferenceAssemblies.net40 (#787)

since is detected as a package downgrade and a failure in newer SDKs

Author: tlakollo

Directory.Build.props

@@ -14,7 +14,7 @@
     <DisableImplicitFrameworkReferences>true</DisableImplicitFrameworkReferences>
   </PropertyGroup>
   <ItemGroup Condition=" '$(TargetFramework)' == 'net40' ">
-    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies.net40" Version="1.0.0" />
+    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies.net40" Version="1.0.2" />
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />