Add temporary workaround for Windows SDK dependency in Uwp.props

Author: Arlodotexe

MultiTarget/PackageReferences/Uwp.props

@@ -2,5 +2,8 @@
   <ItemGroup>
     <PackageReference Condition="'$(HasWinUI)' == 'true'" Include="Microsoft.UI.Xaml" Version="2.8.7-prerelease.241119001" />
     <PackageReference Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'" Include="Microsoft.Windows.CsWinRT" Version="2.1.6" PrivateAssets="all" />
+
+    <!-- Temp workaround until next Windows SDK servicing update -->
+    <PackageReference Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'" Include="Microsoft.Windows.SDK.CPP" Version="10.0.26100.2454" PrivateAssets="all" />
   </ItemGroup>
 </Project>