Cédric Luthi ffd24ec451 Fix intermittent test failure
When running on .NET Framework, the `Should_Report_Max_Remaining_Time_For_Extremely_Small_Progress` would intermittently fail with the following error:
```
task.RemainingTime
    should be
10675199.02:48:05.4775807
    but was
null
```

This is because it's possible that the two increment share the same timestamp thus making the `RemainingTime` null. To ensure the two increments don't share the same timestamp, we sleep for one millisecond.

Although I have only observed this issue on .NET Framework it would be possible that it occasionally also occur on .NET Core.
2021-08-30 11:08:24 +02:00
..
2021-08-30 11:08:24 +02:00
2021-07-14 08:38:44 -04:00
2021-07-14 08:38:44 -04:00