Build(deps): Bump astro from 5.8.1 to 5.9.1

Bumps [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) from 5.8.1 to 5.9.1.
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/main/packages/astro/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/[email protected]/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 5.9.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -13,7 +13,7 @@
   "dependencies": {
     "@astrojs/sitemap": "^3.4.0",
     "@astrojs/tailwind": "^5.1.5",
-    "astro": "^5.8.1",
+    "astro": "^5.9.1",
     "sass": "^1.89.1",
     "tailwindcss": "^3.4.17"
   },