Merge "[Thread] graduate CtsThreadNetworkTestCases from postsubmit" into main am: 24ae5c2d06 am: 01064d675f

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2804113

Change-Id: I2da277f1084df48ef9e3208a525bf5f2b1454055
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>