chore: bump typescript from 4.6.3 to 4.6.4 in /website (#821)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 4.6.3 to 4.6.4.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v4.6.3...v4.6.4)

---
updated-dependencies:
- dependency-name: typescript
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

website/package-lock.json

@@ -32,6 +32,6 @@
     "@types/react-helmet": "^6.1.5",
     "@types/react-router-dom": "^5.3.3",
     "prettier": "2.6.2",
-    "typescript": "^4.6.3"
+    "typescript": "^4.6.4"
   }
 }