Cannot build WinUI wapproj with .NET SDK

### Describe the bug

The following error occurs when using `dotnet build` from .NET SDK to build a C# WinUI app packaged with a WAP project.

```
error MSB4019: The imported project "C:\Program Files\dotnet\sdk\6.0.401\Microsoft\DesktopBridge\Microsoft.DesktopBridge.props" was not found. Confirm that the expression in the Import declaration "C:\Program Files\dotnet\sdk\6.0.401\\Microsoft\DesktopBridge\\Microsoft.DesktopBridge.props" is correct, and that the file exists on disk.
```

### Steps to reproduce the bug

1. Open Visual Studio 2022
2. Create a new project
3. Create from template "Blank App, Packaged with Windows Application Packaging Project (WinUI 3 in Desktop)"
4. From the directory of the new solution run `dotnet build`
5. Observe `error MSB4019: The imported project "C:\Program Files\dotnet\sdk\6.0.401\Microsoft\DesktopBridge\Microsoft.DesktopBridge.props" was not found. Confirm that the expression in the Import declaration "C:\Program Files\dotnet\sdk\6.0.401\\Microsoft\DesktopBridge\\Microsoft.DesktopBridge.props" is correct, and that the file exists on disk.`

### Expected behavior

*.wapproj should build without error.

### Screenshots

_No response_

### NuGet package version

_No response_

### Packaging type

Packaged (MSIX)

### Windows version

Windows 10 version 21H2 (19044, November 2021 Update)

### IDE

Visual Studio 2022

### Additional context

Versions used:
Windows App SDK 1.1.5
Microsoft.Windows.SDK.BuildTools 10.0.22621.1
Windows App SDK C# VS2022 Templates 1.1.3.80461806
.NET SDK version 6.0401