chore(package): update react to version 16.8.2

Author: greenkeeper[bot]

package.json

@@ -56,7 +56,7 @@
     "mocha": "3.4.2",
     "npm-run-all": "4.0.2",
     "nyc": "^11.1.0",
-    "react": "^16.3.0",
+    "react": "^16.8.2",
     "react-dom": "^16.3.0",
     "react-router": "^3.0.4",
     "react-test-renderer": "^15.6.1",