API.250114-MINOR

🐛Fix

PLEN-9048: When making an API call to https://api.plenigo.com/#tag/Subscriptions/operation/searchSubscriptions using the endingBefore parameter with a valid subscription ID, the response contained an array “items” stating “null”. The correct subscription items with their full data are returned now.

PLEN-8003: Our API documentation did not pass validation. Validation warnings in the API documentation is fixed. When building SDKs autoamtically, there are no errors anymore.