chore(package): update react to version 16.8.6

Author: greenkeeper[bot]

package.json

@@ -36,7 +36,7 @@
  "jest": "^24.1.0",
  "lint-staged": "^8.1.4",
  "prettier": "^1.16.4",
- "react": "16.8.5",
+ "react": "16.8.6",
  "react-dom": "16.8.5",
  "react-test-renderer": "16.8.5",
  "rxjs": "^6.4.0",