chore(package): update eslint-plugin-flowtype to version 2.47.0

Author: greenkeeper[bot]

package.json

@@ -142,7 +142,7 @@
     "eslint": "4.19.1",
     "eslint-config-prettier": "2.9.0",
     "eslint-plugin-babel": "5.1.0",
-    "eslint-plugin-flowtype": "2.46.3",
+    "eslint-plugin-flowtype": "2.47.0",
     "eslint-plugin-react": "7.8.2",
     "eslint-plugin-react-native": "3.2.0",
     "flow-bin": "0.67.1",