[3.6] bpo-29097: Forego fold detection on windows for low timestamp values (GH-2385...

[3.6] bpo-29097: Forego fold detection on windows for low timestamp values (GH-2385) (GH-8498)

On Windows, passing a negative value to local results in an OSError because localtime_s on Windows does not support negative timestamps. Unfortunately this means that fold detection for timestamps between 0 and max_fold_seconds will result in this OSError since we subtract max_fold_seconds from the timestamp to detect a fold. However, since we know there haven't been any folds in the interval [0, max_fold_seconds) in any timezone, we can hackily just forego fold detection for this time range on Windows..
(cherry picked from commit 96d1e69a12ed8ab80203277e1abdaf573457a964)

Co-authored-by: Ammar Askar <ammar_askar@hotmail.com>