Fix a few more URLs in review apps

ci: Fix video source URLs in review apps

We have just been looking at img tags before, but now we look at video > source elements as well.

This was mentioned in: !3635 (diffs, comment 1743044829)

ci: Fix urls in review apps in <figure-img> component

We haven't fixed relative URLs in the <figure-img> component.

What	Before	After
Video
figure-img