chore(deps): bump astro from 5.7.10 to 5.13.1

Bumps [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) from 5.7.10 to 5.13.1.
- [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/astro@5.13.1/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 5.13.1
  dependency-type: direct:production
...

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

package.json

@@ -19,7 +19,7 @@
     "@astrojs/sitemap": "^3.3.1",
     "@fontsource-variable/jetbrains-mono": "^5.2.5",
     "artalk": "^2.9.1",
-    "astro": "^5.2.5",
+    "astro": "^5.13.1",
     "echarts": "^6.0.0",
     "giscus": "^1.6.0",
     "ico-endec": "^0.1.6",