Stable versioning for placeholder MSI (#51496)

Author: NikolaMilosavljevic

src/Layout/pkg/windows/msis/placeholder/placeholder.wixproj

@@ -1,5 +1,9 @@
 <!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the MIT license. See License.txt in the project root for full license information. -->
 <Project Sdk="Microsoft.WixToolset.Sdk">
+  <PropertyGroup>
+    <IsShippingPackage>true</IsShippingPackage>
+  </PropertyGroup>
+
   <ItemGroup>
     <Compile Include="$(PkgMicrosoft_DotNet_Build_Tasks_Installers)\build\wix5\product\dotnethome_x64.wxs" />
     <Compile Include="..\provider.wxs" />