use stage 2 MSBuild version instead of stage 0 for msbuild disjoint c… (#42551)

Author: marcpopMSFT

src/Installer/redist-installer/targets/GenerateBundledVersions.targets

@@ -1247,7 +1247,9 @@ Copyright (c) .NET Foundation. All rights reserved.
     <PropertyGroup>
       <MinimumMSBuildVersionFile>$(RedistLayoutPath)sdk/$(Version)/minimumMSBuildVersion</MinimumMSBuildVersionFile>
       <BundledMSBuildPropsFileName>Microsoft.NETCoreSdk.BundledMSBuildInformation.props</BundledMSBuildPropsFileName>
-      <BundledMSBuildVersion>$(MSBuildVersion)</BundledMSBuildVersion>
+      <_ShippingMSBuildVersion>$(MicrosoftBuildVersion)</_ShippingMSBuildVersion>
+      <_ShippingMSBuildVersion Condition="$(_ShippingMSBuildVersion.Contains('-'))">$(MicrosoftBuildVersion.Split('-')[0])</_ShippingMSBuildVersion>
+      <BundledMSBuildVersion>$(_ShippingMSBuildVersion)</BundledMSBuildVersion>
     </PropertyGroup>
 
     <Error Text="No MSBuild version file found under '$(RedistLayoutPath)sdk/$(Version)'" Condition="!Exists('$(MinimumMSBuildVersionFile)')" />