[app][main] update nuget packages.

Author: Jing KE

src/Main/Main.csproj

@@ -151,7 +151,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.NETCore.UniversalWindowsPlatform">
-      <Version>6.2.10</Version>
+      <Version>6.2.13</Version>
     </PackageReference>
   </ItemGroup>
   <ItemGroup />