There is a `matplotlib` deprecation notice in this lecture that needs to be fixed <img width="621" height="644" alt="Image" src="https://github.com/user-attachments/assets/13f080a6-66d2-4c93-8d52-0df8a83266bd" /> - [ ] @mmcky add this to `check-warnings` action under a section on `package` specific warnings to monitor. (new feature)
