Update react to the latest version 🚀 (#1209)

* fix(package): update react to version 16.9.0

* fix(package): update react-dom to version 16.9.0

* chore(package): update react-test-renderer to version 16.9.0

* chore(package): update lockfile package-lock.json

Author: greenkeeper[bot]

package-lock.json

@@ -58,10 +58,10 @@
     "prismjs": "1.17.0",
     "prop-types": "15.7.2",
     "query-string": "6.8.2",
-    "react": "16.8.6",
+    "react": "16.9.0",
     "react-dnd": "8.0.3",
     "react-dnd-html5-backend": "8.0.3",
-    "react-dom": "16.8.6",
+    "react-dom": "16.9.0",
     "react-helmet": "5.2.1",
     "react-redux": "5.1.1",
     "react-router": "5.0.1",
@@ -93,7 +93,7 @@
     "parse-server": "github:parseplatform/parse-server#master",
     "path-to-regexp": "3.0.0",
     "puppeteer": "1.19.0",
-    "react-test-renderer": "16.8.6",
+    "react-test-renderer": "16.9.0",
     "request": "2.87.0",
     "request-promise": "4.2.4",
     "sass-loader": "7.1.0",