TEST: updated test for sct_dmri_moco
TEST: updated test for sct_dmri_moco

Former-commit-id: 4500f4b26bb62d5514889929c1b52bd6d7f387b5
Former-commit-id: 9ae90746843c487c31fe333cccdaa5f5e8cd9a05
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox