tests: fix Gabbi live test to not rely on legacy resource types
tests: fix Gabbi live test to not rely on legacy resource types

Change-Id: I3356579524c23f771fbd5ae74e4fa9d3e0dd8d09

sileht/gnocchi,leandroreox/gnocchi,sileht/gnocchi,gnocchixyz/gnocchi,leandroreox/gnocchi,gnocchixyz/gnocchi