GetAppMetricsAsync() does not return anymore

[ThuCommix]

• Version: 9.31.2
• dotnet core: v3.1.101
• node: 8.12.0

• Target: Windows

After upgrading from the latest 8.xxx version the method Electron.App.GetAppMetricsAsync() does not return anymore.

Steps to Reproduce:

1. var metrics = await Electron.App.GetAppMetricsAsync(cancellationToken);