Update site React to 19.2.1 to address RVE vulnerability

Author: danielguillan

package-lock.json

@@ -25,8 +25,8 @@
     "@primer/octicons-react": "19.15.1",
     "eslint-config-next": "15.5.2",
     "next": "15.5.2",
-    "react": "^19.2.0",
-    "react-dom": "^19.2.0"
+    "react": "^19.2.1",
+    "react-dom": "^19.2.1"
   },
   "devDependencies": {
     "@github/prettier-config": "^0.0.6",