Update CsWinRT version to 2.2.0

[wangfys]

Description of Change

Version Update to make SkiaSharp.Views.WinUI.Native.Projection trimming-safe

Bugs Fixed

• Fixes [BUG / WinUI] SkiaSharp is not trimming-safe #3327

API Changes

None.

Behavioral Changes

None.

Required skia PR

None.

PR Checklist

• Has tests (if omitted, state reason in description)
• Rebased on top of main at time of PR
• Merged related skia PRs
• Changes adhere to coding standard
• Updated documentation

[wangfys]

@dotnet-policy-service agree

[Copilot]

Pull request overview

This PR updates the CsWinRT dependency in the WinUI native projection project to a newer version intended to resolve trimming-safety warnings when using NativeAOT, addressing issue #3327.

Changes:

• Bump Microsoft.Windows.CsWinRT package reference from 2.0.4 to 2.2.0 in SkiaSharp.Views.WinUI.Native.Projection.csproj.
• No code or API changes; only build/dependency configuration is updated.

[mattleibow]

Thansk for this PR! I triggered the build internally and I see we are getting an error:

   "D:\a\1\s\native\winui\SkiaSharp.Views.WinUI.Native\SkiaSharp.Views.WinUI.Native.sln" (Build target) (1:2) ->
   "D:\a\1\s\native\winui\SkiaSharp.Views.WinUI.Native\SkiaSharp.Views.WinUI.Native.Projection\SkiaSharp.Views.WinUI.Native.Projection.csproj" (default target) (3:6) ->
   (CoreCompile target) -> 
     D:\a\1\s\native\winui\SkiaSharp.Views.WinUI.Native\SkiaSharp.Views.WinUI.Native.Projection\obj\Release\net6.0-windows10.0.19041.0\Generated Files\CsWinRT\SkiaSharp.Views.WinUI.Native.cs(108,162): error CS0117: 'IBufferMethods' does not contain a definition for 'IID' [D:\a\1\s\native\winui\SkiaSharp.Views.WinUI.Native\SkiaSharp.Views.WinUI.Native.Projection\SkiaSharp.Views.WinUI.Native.Projection.csproj]

[wangfys]

Oh, I finally reproduced this build error. It is quite painful to prepare the environment since lots of stuffs are updated. For example, I ran into llvm/llvm-project#95133 when trying to build externals-windows. Luckily, I finally realized that I only need to build externals-winui.

It seems like it is related to code generation. I need some time to check whether I can fix it here or we need to wait for bug fix from CsWinRT.

[wangfys]

@mattleibow Hello, I can now build externals-winui successfully. The reason for the build failure is that the Windows metadata bundled with the .NET SDK 8.0.100 is outdated for CsWinRT 2.2.0. So, I added this line:

<CsWinRTWindowsMetadata>10.0.17763.57</CsWinRTWindowsMetadata>

But I'm a little bit concerned about what if users of SkiaSharp use an old version.

By the way, I only made externals-winui build successfully. I struggled a lot but still failed to prepare the environment for building the whole solution.