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update authors [skip ci]

nbuchanan/node-gdal,jdesboeufs/node-gdal,naturalatlas/node-gdal,jdesboeufs/node-gdal,naturalatlas/node-gdal,naturalatlas/node-gdal,naturalatlas/node-gdal,jdesboeufs/node-gdal,nbuchanan/node-gdal,nbuchanan/node-gdal,nbuchanan/node-gdal,jdesboeufs/node-gdal