Bump astro from 6.4.6 to 7.1.0

Bumps [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) from 6.4.6 to 7.1.0.
- [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@7.1.0/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 7.1.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]

apps/site/package.json

@@ -14,7 +14,7 @@
     "@astrojs/react": "^5.0.4",
     "@astrojs/starlight": "^0.39.2",
     "@chart-kit/pro": "7.0.0",
-    "astro": "^6.3.1",
+    "astro": "^7.1.0",
     "react": "^19.2.6",
     "react-dom": "^19.2.6",
     "react-native-svg": "^15.15.4"