One of the GitHub actions is to check the code using `safety`. This is currently running OK, but is reporting a deprecation warning: <img width="1999" height="375" alt="Image" src="https://github.com/user-attachments/assets/5bb21bdf-6031-4d04-a69f-69401d9347d6" /> Maybe we should switch from the `check` command to the `scan` command as the warning message says? Acceptance criteria: - [ ] No deprecation warnings are issued