ArgumentException when creating WindowIcon from Bitmap

[mnvfs]

Describe the bug

Since updating to version 11.0.8 I get an ArgumentException with the message "Unable to load bitmap from provided data" when creating WindowIcon from a Bitmap.

To Reproduce

Simple use the WindowIcon ctor with the Bitmap parameter.

Expected behavior

No exception is thrown.

Environment

• OS: Windows 10 22H2 OS Build 19045.3803
• Avalonia-Version: 11.0.8

Additional context

I was able to debug the problem and for me it seems that the problem is that in Win32Platofrm.LoadIcon(IBitmapImpl) does not reset the create MemoryStreams position. Therefore any further call uses an empty array which in the end leads to the ArgumentException.
When I use the Stream parameter ctor of WindowIcon with a stream created by myself (and the position reset) everything works fine.

[maxkatz6]

Already fixed by #13445 in master. Will release 11.0.9 with a fix today.