Use noble image from stackhpc/master to avoid kernel issue

Author: seunghun1ee

.automation.conf/config.sh

@@ -29,7 +29,6 @@ if [ ! -z ${KAYOBE_ENVIRONMENT:+x} ]; then
     # https://bugs.launchpad.net/ubuntu/+source/linux-meta-oracle-6.8/+bug/2104178
     # which blocks attaching interfaces to neutron routers in OVS system.
     # Ignoring sets of tests failing because of this until kernel fix is released.
-    export KAYOBE_AUTOMATION_TEMPEST_SKIPLIST=ci-aio-tempest-refstack
   fi
 
   if [[ "$KAYOBE_ENVIRONMENT" =~ "ci-multinode" ]]; then

.automation.conf/tempest/skip-lists/ci-aio-tempest-refstack

@@ -3,4 +3,9 @@
 # These images must be in SMS, since they are used by our AIO CI runners
 stackhpc_rocky_9_overcloud_host_image_version: "2024.1-20241209T151515"
 stackhpc_ubuntu_jammy_overcloud_host_image_version: "2024.1-20250408T082408"
-stackhpc_ubuntu_noble_overcloud_host_image_version: "2024.1-20250408T092345"
+# NOTE(seunghun1ee): Ubuntu Noble kernel 6.8.0-57-generic has iptables bug
+# https://bugs.launchpad.net/ubuntu/+source/linux-meta-oracle-6.8/+bug/2104178
+# Which prevents Neutron to populate router and its port when the OpenStack
+# cloud uses OVS.
+# Using image from master (kernel version: 6.8.0-52-generic) to avoid this issue
+stackhpc_ubuntu_noble_overcloud_host_image_version: "master-20250304T085258"