update package.json

Author: nuochong

package.json

@@ -22,7 +22,7 @@
     "nativescript-local-notifications": "^4.0.1",
     "nativescript-permissions": "^1.3.7",
     "nativescript-phone": "^1.4.0",
-    "nativescript-pulltorefresh": "^2.2.0",
+    "nativescript-pulltorefresh": "^2.3.0",
     "nativescript-socket.io": "^0.11.0",
     "nativescript-theme-core": "^1.0.4",
     "nativescript-toast": "^2.0.0",