Add sleep before fetching reports am: 82c868c3c3 am: 3ee83cf4f7

Original change: https://android-review.googlesource.com/c/platform/packages/modules/StatsD/+/2495003

Change-Id: I7482844c6806489cd2f2759650bc8427a3081ddc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>