Bump @astrojs/starlight from 0.37.3 to 0.37.4 in /docs

Bumps [@astrojs/starlight](https://github.com/withastro/starlight/tree/HEAD/packages/starlight) from 0.37.3 to 0.37.4.
- [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@0.37.4/packages/starlight)

---
updated-dependencies:
- dependency-name: "@astrojs/starlight"
  dependency-version: 0.37.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

docs/package-lock.json

@@ -17,7 +17,7 @@
     "test:debug": "playwright test --debug"
   },
   "dependencies": {
-    "@astrojs/starlight": "^0.37.3",
+    "@astrojs/starlight": "^0.37.4",
     "@primer/octicons": "^19.21.2",
     "astro": "^5.16.12",
     "astro-mermaid": "^1.2.0",