fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-LODASH-73638
- https://snyk.io/vuln/SNYK-JS-LODASH-73639

package.json

@@ -17,7 +17,7 @@
     "lottie-react-native": "airbnb/lottie-react-native#e823440",
     "react": "16.0.0-alpha.12",
     "react-native": "0.47.2",
-    "react-native-code-push": "^5.0.0-beta",
+    "react-native-code-push": "^5.2.1",
     "react-native-device-info": "^0.11.0",
     "react-native-heap-analytics": "^2.4.0",
     "react-native-instabug-sdk": "^4.3.0",