Tests: Update wp-api-generated.js.

[47755] and [47756] caused a schema change, so the wp-api-generated.js file needs to be updated.

Built from https://develop.svn.wordpress.org/trunk@47757


git-svn-id: https://core.svn.wordpress.org/trunk@47533 1a063a9b-81f0-0310-95a4-ce76da25c4cd