fix(package): update react-native-onesignal to version 3.0.4

Author: greenkeeper[bot]

package.json

@@ -94,7 +94,7 @@
     "react-native-linear-gradient": "2.0.0",
     "react-native-maps": "0.15.0",
     "react-native-network-info": "2.0.0",
-    "react-native-onesignal": "3.0.3",
+    "react-native-onesignal": "3.0.4",
     "react-native-parallax-view": "2.0.6",
     "react-native-safari-view": "2.0.0",
     "react-native-search-bar": "3.0.0",