Build(deps-dev): Bump the development-dependencies group with 4 updates (#41621)

- @astrojs/sitemap   ^3.4.1  →   ^3.4.2
- astro             ^5.12.1  →  ^5.12.4
- cross-env          ^7.0.3  →  ^10.0.0
- rollup            ^4.45.1  →  ^4.46.1

Author: julien-deramond