Fix flaky testNoMetricsWrittenForShortDuration_LegacyApfFilter am: 95093d4932 am: d4ad694355

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/2864101

Change-Id: Iae1df66565c59d11376c6a6a86526cc6092057f5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>