fix: react-native-cli/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-INFLIGHT-6095116
- https://snyk.io/vuln/npm:utile:20180614

react-native-cli/package.json

@@ -20,7 +20,7 @@
   "dependencies": {
     "chalk": "^1.1.1",
     "minimist": "^1.2.0",
-    "prompt": "^0.2.14",
+    "prompt": "^1.2.0",
     "semver": "^5.0.3"
   }
 }