Missing Link To Webinar

Path: [/learn/playwright/testing-pyramid](https://www.checklyhq.com/docs/learn/playwright/testing-pyramid/#dive-deeper-into-the-testing-pyramid-with-real-world-applications)

In link above, a webinar is mentioned but is missing it's link.

<img width="782" height="318" alt="Image" src="https://github.com/user-attachments/assets/1195d713-5fe8-4692-b25f-909947c05e37" />