Bump astro from 4.16.18 to 5.5.5

Bumps [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) from 4.16.18 to 5.5.5.
- [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/astro@5.5.5/packages/astro)

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -17,7 +17,7 @@
     "@astrojs/tailwind": "^5.1.2",
     "@astrojs/vue": "^4.5.3",
     "@vitejs/plugin-vue": "^5.0.4",
-    "astro": "^4.16.14",
+    "astro": "^5.5.5",
     "sharp": "^0.32.6",
     "starlight-theme-obsidian": "^0.0.10",
     "tailwindcss": "^3.3.6",