chore: Update example deps

Author: tannerlinsley

examples/sandbox/package.json

@@ -9,7 +9,7 @@
   "dependencies": {
     "react": "^16.8.6",
     "react-dom": "^16.8.6",
-    "react-virtual": "1.0.12",
+    "react-virtual": "^1.0.0",
     "react-scripts": "3.0.1",
     "stop-runaway-react-effects": "^1.2.0"
   },