Fix backup storage reference for virt_plus ceph test config
Fix backup storage reference for virt_plus ceph test config

zstackio/zstack-woodpecker,zstackio/zstack-woodpecker,zstackio/zstack-woodpecker,zstackorg/zstack-woodpecker,zstackorg/zstack-woodpecker,zstackorg/zstack-woodpecker