Bump @astrojs/starlight in /website in the dependabot group

Bumps the dependabot group in /website with 1 update: [@astrojs/starlight](https://github.com/withastro/starlight/tree/HEAD/packages/starlight).


Updates `@astrojs/starlight` from 0.36.0 to 0.37.0
- [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/starlight@0.37.0/packages/starlight)

---
updated-dependencies:
- dependency-name: "@astrojs/starlight"
  dependency-version: 0.37.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependabot
...

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

Author: dependabot[bot]

website/package-lock.json

@@ -11,7 +11,7 @@
   },
   "dependencies": {
     "@astrojs/check": "^0.9.3",
-    "@astrojs/starlight": "^0.36.0",
+    "@astrojs/starlight": "^0.37.0",
     "astro": "^5.16.0",
     "rehype-mathjax": "^7.1.0",
     "remark-math": "^6.0.0",