Update ChartDemo.csproj

To clear certification validation issue

Author: VimalaThirumalaikumar

Drill down/ChartDemo/ChartDemo.csproj

@@ -134,7 +134,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.NETCore.UniversalWindowsPlatform">
-      <Version>6.0.1</Version>
+      <Version>6.0.6</Version>
     </PackageReference>
     <PackageReference Include="Syncfusion.SfChart.UWP">
       <Version>*</Version>
@@ -151,4 +151,4 @@
   <Target Name="AfterBuild">
   </Target>
   -->
-</Project>
+</Project>