build(deps): bump Microsoft.NETCore.UniversalWindowsPlatform in /samp…

…les (#214)

Bumps [Microsoft.NETCore.UniversalWindowsPlatform](https://github.com/Microsoft/dotnet) from 6.2.11 to 6.2.12.
- [Release notes](https://github.com/Microsoft/dotnet/releases)
- [Commits](https://github.com/Microsoft/dotnet/commits)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

samples/LoginApp.Uwp/LoginApp.Uwp.csproj

@@ -147,7 +147,7 @@
     </ApplicationDefinition>
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.NETCore.UniversalWindowsPlatform" Version="6.2.11" />
+    <PackageReference Include="Microsoft.NETCore.UniversalWindowsPlatform" Version="6.2.12" />
     <PackageReference Include="ReactiveUI" Version="13.*" />
     <PackageReference Include="ReactiveUI.Validation" Version="2.*" />
   </ItemGroup>