[Tracking] Update TaskDialog HandleTaskDialogNativeCallback code when CsWin32 is updated to use Win32MetaData v57

[elachlan]

Based on comment: #9900 (comment)

winforms/src/System.Windows.Forms/src/System/Windows/Forms/Dialogs/TaskDialog/TaskDialog.cs

Lines 262 to 274 in 7a6f734

	[UnmanagedCallersOnly]
	private static HRESULT HandleTaskDialogNativeCallback(
	HWND hwnd,
	TASKDIALOG_NOTIFICATIONS msg,
	IntPtr wParam,
	IntPtr lParam,
	IntPtr lpRefData) =>
	// Call the instance method by dereferencing the GC handle.
	(((GCHandle)lpRefData).Target as TaskDialog)!.HandleTaskDialogCallback(
	hwnd,
	msg,
	wParam,
	lParam);

[Tanya-Solyanik]

@elachlan - could yo uplease check if v57 had been released?

[elachlan]

CsWin32 is now using v60 of the metadata. But I am unsure if the issue has been resolved.

[lonitra]

This is blocked on microsoft/CsWin32#1204