update demo rn version to 0.47.2

demo/package.json

 	"jest": {
 		"preset": "react-native"
 	}
-}
+}

demo/yarn.lock

     ws "^2.0.3"
 
 react-native-autoheight-webview@../:
-  version "0.3.1"
+  version "0.3.2"
   dependencies:
     immutable "^3.8.1"
     prop-types "^15.5.10"