Use live runtime references for vcxproj

Fixes #9490
Unblocks dotnet/sdk#43015

When building wpf inside the VMR, a 10.0.100 SDK is used. WPF currently still targets net9.0. As WPF directly depends on runtime, it already uses 10.0.0-alpha versions of the targeting and runtime packs for managed projects.

Enable this for vcxprojs as well so that the host packages can also be restored from the flowing runtime dependency.

Fixes errors like these:

> The Apphost pack is not installed and NuGet package restore is not supported. Upgrade Visual Studio, remove global.json if it specifies a certain SDK version, and uninstall the newer SDK. For more options visit   https://aka.ms/targeting-apphost-pack-missing  Pack Type:Apphost, Pack directory: D:\a\_work\1\vmr\.dotnet\packs\Microsoft.NETCore.App.Host.win-x64, targetframework: net9.0, Pack PackageId: Microsoft.NETCore.App.Host.win-x64, Pack Package Version: 9.0.0-rc.2.24473.5

Author: ViktorHofer

eng/WpfArcadeSdk/tools/RuntimeFrameworkReference.targets

@@ -1,4 +1,8 @@
 <Project>
+  <PropertyGroup>
+    <EnableManagedPackageReferenceSupport>true</EnableManagedPackageReferenceSupport>
+  </PropertyGroup>
+
   <!-- 
     Explicitly import Microsoft.NETCore.Platforms to prevent using the one from the SDK, which
     usually lags behind the version that WPF gets from CoreFx packages
@@ -15,9 +19,7 @@
     <FrameworkReference Update="Microsoft.NETCore.App"
                       Condition="'$(MicrosoftNETCoreAppRefVersion)'!=''
                              And '$(NoTargets)'!='true'
-                             And '$(TargetFrameworkIdentifier)' == '.NETCoreApp'
-                             And $([MSBuild]::VersionGreaterThanOrEquals('$(TargetFrameworkVersion)', '3.0'))
-                             And '$(MSBuildProjectExtension)'!='.vcxproj'">
+                             And '$(TargetFrameworkIdentifier)' == '.NETCoreApp'">
       <TargetingPackVersion>$(MicrosoftNETCoreAppRefVersion)</TargetingPackVersion>
     </FrameworkReference>
 
@@ -31,8 +33,6 @@
   <PropertyGroup>
     <RuntimeFrameworkVersion Condition="'$(MicrosoftNETCoreAppRuntimewinx64Version)'!='' And
                                         '$(NoTargets)'!='true' And
-                                        '$(TargetFrameworkIdentifier)' == '.NETCoreApp' And
-                                        $([MSBuild]::VersionGreaterThanOrEquals('$(TargetFrameworkVersion)', '3.0')) And
-                                        '$(MSBuildProjectExtension)'!='.vcxproj'">$(MicrosoftNETCoreAppRuntimewinx64Version)</RuntimeFrameworkVersion>
+                                        '$(TargetFrameworkIdentifier)' == '.NETCoreApp'">$(MicrosoftNETCoreAppRuntimewinx64Version)</RuntimeFrameworkVersion>
   </PropertyGroup>
 </Project>