message: Reset file attributes before trying to delete the file (win)
diff: @@ -1136,7 +1136,7 @@ public static partial class Toggl
  var di = new DirectoryInfo(updatePath);
  foreach (var file in di.GetFiles("TogglDesktopInstaller*.exe", SearchOption.TopDirectoryOnly))
  {
  - file.Delete();
  + Utils.DeleteFile(file.FullName);
  }
  return;
  @@ -1164,7 +1164,7 @@ public static partial class Toggl
  Debug("Multiple update installers found. Deleting.");
  foreach (var file in files)
  {
  - file.Delete();
  + Utils.DeleteFile(file.FullName);
  }
  return null;
  }
  