zuul: Skip swap_volume tests as part of nova-next

The volume update or swap_volume API has long been a source of gate
failures within Nova. Most recently we've seen increased instability
when running the temptest.api.compute.admin.test_volume_swap tests as
part of the nova-next job as documented in bug #1929710.

This change temporarily removes the failing test from the nova-next job
while the underlying issue is identified lower in the virt stack.

Change-Id: Ib56a034fb08e309981d0b4553b8cee8d16b10152
Related-Bug: #1929710

Author: lyarwood

.zuul.yaml

@@ -192,7 +192,9 @@
       # (1) take a long time and (2) are already covered in the
       # tempest-slow* job. If this regex gets more complicated use
       # tempest_test_exclude_list.
-      tempest_exclude_regex: ^tempest.scenario.test_network
+      # FIXME(lyarwood): The tempest.api.compute.admin.test_volume_swap tests
+      # are skipped until bug #1929710 is resolved.
+      tempest_exclude_regex: ^tempest\.(scenario\.test_network|api\.compute\.admin\.test_volume_swap)
       devstack_local_conf:
         post-config:
           $NOVA_CPU_CONF: