chore(deps-dev): bump dependencies

- @astrojs/starlight         ^0.35.3  →  ^0.36.0
- astro                      ^5.13.8  →  ^5.13.9
- starlight-links-validator  ^0.17.2  →  ^0.18.0
- vercel                     ^48.0.2  →  ^48.1.0

Author: julien-deramond