Missing `lodash` dependency declaration causes error in latest version of Gutenberg plugin

[goldenapples]

Recently Gutenberg finished removing all usage of lodash: WordPress/gutenberg#17025 (comment)

Because the editor scripts in Authorship still rely on lodash, but it's not declared as a dependency, they fail in the latest version of the Gutenberg plugin:

Uncaught ReferenceError: lodash is not defined

It would be good to either rewrite code that depends on lodash or declare it as a dependency.

[tomjn]

Looks like uses are confined to the AuthorsSelect.tsx https://github.com/humanmade/authorship/blob/develop/src/components/AuthorsSelect.tsx file