Bump @astrojs/starlight from 0.31.0 to 0.31.1 (#44)

Bumps [@astrojs/starlight](https://github.com/withastro/starlight/tree/HEAD/packages/starlight) from 0.31.0 to 0.31.1.
- [Release notes](https://github.com/withastro/starlight/releases)
- [Changelog](https://github.com/withastro/starlight/blob/main/packages/starlight/CHANGELOG.md)
- [Commits](https://github.com/withastro/starlight/commits/@astrojs/[email protected]/packages/starlight)

---
updated-dependencies:
- dependency-name: "@astrojs/starlight"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -11,7 +11,7 @@
     "update": "npx @astrojs/upgrade"
   },
   "dependencies": {
-    "@astrojs/starlight": "^0.31.0",
+    "@astrojs/starlight": "^0.31.1",
     "astro": "^5.1.7"
   }
 }