Bump @astrojs/starlight from 0.38.2 to 0.38.3 in /docs

Bumps [@astrojs/starlight](https://github.com/withastro/starlight/tree/HEAD/packages/starlight) from 0.38.2 to 0.38.3.
- [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@0.38.3/packages/starlight)

---
updated-dependencies:
- dependency-name: "@astrojs/starlight"
  dependency-version: 0.38.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

docs/package.json

@@ -6,7 +6,7 @@
         "node": ">= 24.0.0"
     },
     "dependencies": {
-        "@astrojs/starlight": "^0.38.2",
+        "@astrojs/starlight": "^0.38.3",
         "@nu-appdev/northwestern-starlight-theme": "^1.5.0",
         "astro": "^6.1.2",
         "sharp": "^0.34.5"