Update API client with latest OpenAPI spec

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: d0355ce029cf2ecf8f1d170050d784e13a9a1e1c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

| Name | Type | | ------------ | ----- | | @gitbook/api | Minor |

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR