Storybook can fail to run in CI due to port conflicts

[sarayourfriend]

Description

This happened in a recent CI run. https://github.com/WordPress/openverse/actions/runs/11038420290/job/30661716479

Workaround is to just re-run the failed job.

It reminds me of #800 and may in fact just be a duplicate of sorts to that one, not sure.

Something I don't understand in this case, which is different from that one, is that Storybook is running inside the Playwright container in this case and the container does not use host networking. What would cause it to find a port conflict in any case?

Marked as low priority because a single re-run fixed it, and we don't know if it's common. @WordPress/openverse-frontend who will have more experience running and waiting for the storybook playwright tests. If y'all see this happening, please upgrade this issue to high so we can get more attention to it.