chore: bump typescript from 4.6.3 to 4.6.4 in /site (#1252)

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

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

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

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

site/package.json

@@ -101,7 +101,7 @@
     "ts-jest": "27.1.4",
     "ts-loader": "9.2.9",
     "ts-node": "10.7.0",
-    "typescript": "4.6.3",
+    "typescript": "4.6.4",
     "webpack": "5.72.0",
     "webpack-bundle-analyzer": "4.5.0",
     "webpack-cli": "4.9.2",