TEST: label_vertebrae: status as int
TEST: label_vertebrae: status as int

Former-commit-id: 942ff957c5ed2c66f6e2e57d1d1d1bf2e984f2b8
Former-commit-id: a742ff49c53a1809d34b30ee68dec126b36fa1bf
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox