chore(deps): bump the dependencies group in /website with 2 updates (#1768)

Bumps the dependencies group in /website with 2 updates: [@astrojs/starlight](https://github.com/withastro/starlight/tree/HEAD/packages/starlight) and [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro).


Updates `@astrojs/starlight` from 0.36.2 to 0.36.3
- [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@0.36.3/packages/starlight)

Updates `astro` from 5.15.9 to 5.16.0
- [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@5.16.0/packages/astro)

---
updated-dependencies:
- dependency-name: "@astrojs/starlight"
  dependency-version: 0.36.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependencies
- dependency-name: astro
  dependency-version: 5.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependencies
...

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

Author: dependabot[bot]

website/package-lock.json

@@ -25,8 +25,8 @@
     "stylelint": "npx stylelint@latest \"src/*.css\" --fix -f verbose"
   },
   "dependencies": {
-    "@astrojs/starlight": "^0.36.2",
-    "astro": "^5.15.9",
+    "@astrojs/starlight": "^0.36.3",
+    "astro": "^5.16.0",
     "sharp": "^0.34.5",
     "starlight-llms-txt": "^0.6.0"
   },