deflake - bump TestCloseSocketWithoutUntag 50ms test timeout to 5s am: 3bf75ef193 am: c54a66b436 am: b93c40a001

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2589931

Change-Id: I96a3d619e61ae46721b45f4705f57c2055f46d22
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>