spectral-v10.39.0

• Some simple cleanup around convert types by @katrynmc in https://github.com/prismatic-io/spectral/pull/616
• Export the callable npm build's entry hooks by @katrynmc in https://github.com/prismatic-io/spectral/pull/620

Full Changelog: https://github.com/prismatic-io/spectral/compare/spectral-v10.38.7...spectral-v10.39.0