chore(docs): Updated API Reference (v2) (#9552)

Automated changes by [create-pull-request](https://github.com/peter-evans/create-pull-request) GitHub action

Co-authored-by: Oli Juhl <59018053+olivermrbl@users.noreply.github.com>
Co-authored-by: Shahed Nasser <27354907+shahednasser@users.noreply.github.com>

www/utils/generated/oas-output/schemas/AdminUpdateUser.ts

@@ -16,6 +16,9 @@
  *     type: string
  *     title: avatar_url
  *     description: The URL of the user's avatar.
+ *   metadata:
+ *     type: object
+ *     description: The user's metadata, can hold custom key-value pairs.
  * 
 */