docs(examples): fix sandbox version

Author: tannerlinsley

examples/suspense/package.json

@@ -9,7 +9,7 @@
     "react": "0.0.0-experimental-5faf377df",
     "react-dom": "0.0.0-experimental-5faf377df",
     "react-error-boundary": "^2.2.3",
-    "react-query": "^2.21.2",
+    "react-query": "2.23.1",
     "react-query-devtools": "^2.4.7",
     "react-scripts": "3.0.1"
   },
@@ -31,4 +31,4 @@
     "not ie <= 11",
     "not op_mini all"
   ]
-}
+}