feat(barnard59): update spec

[tpluscode]

PR generated automatically from push-to-fig-autocomplete-action.

[withfig-bot]

Overview

src/barnard59.ts:

Info:

URLs:

• https://cube.link/latest/shape/standalone-constraint-constraint

[withfig-bot]

Hello @tpluscode,
thank you very much for creating a Pull Request!
Here is a small checklist to get this PR merged as quickly as possible:

• Do all subcommands / options which take arguments include the args property (args: {})?
• Are all options modular? E.g. -a -u -x instead of -aux
• Have all other checks passed?

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