UGS log a total sync time that is roughly double the actual time

This was reported on EPS:

1. Sync via UGS
2. Look at the log and see "Total time: " is roughly double the actual time.

WorkspaceUpdate.cs has a time entry for total time, but when reporting total time it sums all the times. This double counts as the stop watch is active while the individual times are used. Given this is just for logging we've just not add the "Sync total" to the times list to remove the biggest offender.

times.Add(new Tuple<string, TimeSpan>("Sync Total", syncTelemetryStopwatch.Stop("Success")));
...
logger.LogInformation("Total time: {TotalTime}", FormatTime(times.Sum(x => (long)(x.Item2.TotalMilliseconds / 1000))));