chore(deps-dev): bump dependencies

- prettier                     ^3.8.1  →    ^3.8.2
- starlight-links-validator   ^0.22.0  →   ^0.23.0
- vercel                     ^50.42.0  →  ^50.44.0
- vitest                       ^4.1.3  →    ^4.1.4

Author: julien-deramond