chore(deps): bump dependencies (#1415)

- @astrojs/starlight  ^0.36.1  →  ^0.36.2
- @octokit/graphql     ^9.0.2  →   ^9.0.3
- astro               ^5.15.2  →  ^5.15.3
- starlight-blog      ^0.24.3  →  ^0.25.0
- vercel              ^48.6.7  →  ^48.8.0
- vitest               ^4.0.5  →   ^4.0.6

Author: julien-deramond