[automerger skipped] Skip cts testFirewallBlocking in instant mode. am: 896472ff53 -s ours

am skip reason: Merged-In Ib8752439593dcd285146746b06b29f364e66ab85 with SHA-1 c4e6fcb6bc is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/19029135

Change-Id: I2a1f03093366fba903d08101c823c0864a05c5ad
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>