Retarget winui_desktop_packaged_app_cpp.vcxproj to 22621 (#295)

Author: kythant

Samples/ResourceManagement/cpp-winui/winui_desktop_packaged_app_cpp/winui_desktop_packaged_app_cpp.vcxproj

@@ -23,7 +23,7 @@
     <ApplicationTypeRevision>10.0</ApplicationTypeRevision>
     <IsWinUIAlpha Condition="'$(IsWinUIAlpha)' == ''">true</IsWinUIAlpha>
     <WindowsKitsPath Condition="'$(IsWinUIAlpha)' == 'true'">WinUI-Alpha-Projects-Don-t-Use-SDK-Xaml-Tools</WindowsKitsPath>
-    <WindowsTargetPlatformVersion>10.0.19041.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
     <WindowsTargetPlatformMinVersion>10.0.17763.0</WindowsTargetPlatformMinVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />