Update Windows Community Toolkit for .NET 9

Author: Sergio0694

samples/ComputeSharp.SwapChain.Uwp/ComputeSharp.SwapChain.Uwp.csproj

@@ -49,8 +49,8 @@
 
   <ItemGroup>
     <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />
-    <PackageReference Include="CommunityToolkit.Uwp.Controls.Primitives" Version="8.2.241221-build.1360" />
-    <PackageReference Include="CommunityToolkit.Uwp.Media" Version="8.2.241221-build.1360" />
+    <PackageReference Include="CommunityToolkit.Uwp.Controls.Primitives" Version="8.2.241223-build.1367" />
+    <PackageReference Include="CommunityToolkit.Uwp.Media" Version="8.2.241223-build.1367" />
     <PackageReference Include="Microsoft.Windows.CsWinRT" Version="2.2.0" />
 
     <!-- Remove all WebView2 assets (transitive from WinUI 2), since we don't need it at all -->

samples/ComputeSharp.SwapChain.WinUI/ComputeSharp.SwapChain.WinUI.csproj

@@ -57,8 +57,8 @@
 
   <ItemGroup>
     <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />
-    <PackageReference Include="CommunityToolkit.WinUI.Controls.Primitives" Version="8.2.241112-preview1" />
-    <PackageReference Include="CommunityToolkit.WinUI.Media" Version="8.2.241112-preview1" />
+    <PackageReference Include="CommunityToolkit.WinUI.Controls.Primitives" Version="8.2.241223-build.1367" />
+    <PackageReference Include="CommunityToolkit.WinUI.Media" Version="8.2.241223-build.1367" />
     <PackageReference Include="Microsoft.Windows.CsWinRT" Version="2.2.0" />
   </ItemGroup>