Faulty cronjob entries after update to v3

**Version**
master

**Description**
Our plugin shows faulty cronjob entries ‘elan-ev/OpencastV3/cronjobs/refresh_scheduled_events (fehlerhaft)’ and ‘elan-ev/OpencastV3/cronjobs/refresh_series (fehlerhaft)’ after the update to v3.

**Screenshots**

![Image](https://github.com/user-attachments/assets/806daca9-c11e-4d99-ad94-e1d8b6bccb3d)