chore: bump typescript from 5.9.2 to 5.9.3 in /site (#369)

Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.9.2 to 5.9.3.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Changelog](https://github.com/microsoft/TypeScript/blob/main/azure-pipelines.release-publish.yml)
- [Commits](microsoft/TypeScript@v5.9.2...v5.9.3)

---
updated-dependencies:
- dependency-name: typescript
  dependency-version: 5.9.3
  dependency-type: direct:development
  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]

site/package-lock.json

@@ -38,7 +38,7 @@
     "globals": "^16.4.0",
     "jest": "^30.2.0",
     "prettier": "^3.6.2",
-    "typescript": "~5.9.2"
+    "typescript": "~5.9.3"
   },
   "browserslist": {
     "production": [