chore(package): update @types/react-native to version 0.55.0 (#76)

Author: greenkeeper[bot]

package.json

@@ -27,7 +27,7 @@
   "devDependencies": {
     "@types/jest": "^22.2.0",
     "@types/react": "^16.0.40",
-    "@types/react-native": "^0.52.17",
+    "@types/react-native": "^0.55.0",
     "@types/react-test-renderer": "^16.0.1",
     "@types/shortid": "^0.0.29",
     "babel-eslint": "^8.0.1",