Updating `doctest` output after Cython update.
Updating `doctest` output after Cython update.

See https://app.circleci.com/pipelines/github/dhermes/bezier/116/workflows/3325040f-40da-44df-98ee-a6e118a4f848/jobs/1860.

dhermes/bezier,dhermes/bezier,dhermes/bezier