GithubReleasesUpdateInformation::buildUrl is writing to the console #205

I'm working on a C# (#203) port of the Updater class which handles different log levels.
This part of the code writes directly to the console which it probably should not.

https://github.com/AppImage/AppImageUpdate/blob/2708f91c9ba86eefbc3f13e666cc3356ab9a21a9/src/updateinformation/GithubReleasesZsyncUpdateInformation.h#L42