Merge "Move MdnsTestUtils to the net-tests-utils library" into main am: ac6131b5f1 am: bca8d36c64

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3132039

Change-Id: Ia35507f16ce9486c78cb9b49c5a52d21679cb9d1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>