Pages titles appear twice in SERP

### Describe the issue

In search engine result pages, pages titles are sometimes doubled like this:

<img width="1235" height="316" alt="Image" src="https://github.com/user-attachments/assets/a150543e-d7cd-4ff3-b56f-3675c6cf0f7c" />

### Environment

- Kestra Version: develop
