chore(deps-dev): bump typescript from 5.1.6 to 5.2.2 in /testsite

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 5.1.6 to 5.2.2.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v5.1.6...v5.2.2)

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

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

testsite/package.json

@@ -32,7 +32,7 @@
     "@docusaurus/tsconfig": "3.0.0-alpha.0",
     "@types/react": "^18.2.21",
     "@types/react-dom": "^18.2.7",
-    "typescript": "^5.1.6"
+    "typescript": "^5.2.2"
   },
   "browserslist": {
     "production": [