Update react monorepo to v16.6.2

Author: renovate-bot

package.json

@@ -35,8 +35,8 @@
     "lodash": "4.17.11",
     "mocha": "5.2.0",
     "nodemon": "1.18.4",
-    "react": "16.5.2",
-    "react-dom": "16.5.2",
+    "react": "16.6.2",
+    "react-dom": "16.6.2",
     "rimraf": "2.6.2",
     "superagent": "3.8.3",
     "webpack": "4.20.2",