Update migration image
Update migration image

Changes: https://github.com/digibib/migration/compare/f0d53c5fbddc36adf2fa92676603d35b67b44b19...703d62c0ecaaf3addcbaeaf15224a1f85d637f75

digibib/ls.ext,digibib/ls.ext,digibib/ls.ext,digibib/ls.ext