Fix flaky windows test (#6677)
Fix flaky windows test (#6677)

The windows clock is sometime off by 25ms, and as precise as 15ms.

Let's give it more time to avoid flaky tests.

Fix #6672

Signed-off-by: Julien Pivotto <df1ed88a312a603dfee9f157a90fa8f7f195ab59@inuits.eu>
GoogleCloudPlatform/prometheus,Gouthamve/prometheus,kangwoo/prometheus,keegancsmith/prometheus,prometheus/prometheus,kangwoo/prometheus,alileza/prometheus,prometheus/prometheus,alileza/prometheus,keegancsmith/prometheus,keegancsmith/prometheus,Gouthamve/prometheus,alileza/prometheus,prometheus/prometheus,GoogleCloudPlatform/prometheus,alileza/prometheus,prometheus/prometheus,kangwoo/prometheus,Gouthamve/prometheus,prometheus/prometheus,alileza/prometheus,Gouthamve/prometheus,keegancsmith/prometheus,GoogleCloudPlatform/prometheus,kangwoo/prometheus,GoogleCloudPlatform/prometheus,keegancsmith/prometheus,GoogleCloudPlatform/prometheus