fix(deps): update react monorepo

Author: renovate[bot]

site/package-lock.json

@@ -21,8 +21,8 @@
     "js-yaml": "^4.1.0",
     "lucide-react": "^0.536.0",
     "next": "15.4.5",
-    "react": "19.1.1",
-    "react-dom": "19.1.1",
+    "react": "19.2.0",
+    "react-dom": "19.2.0",
     "react-diff-viewer-continued-react19": "^1.0.0",
     "react-syntax-highlighter": "^15.6.1",
     "tailwind-merge": "^3.3.1"