chore: update dev-appium version

Author: Elena Hristova

demo-angular/package.json

@@ -48,7 +48,7 @@
     "mocha-junit-reporter": "~1.18.0",
     "mocha-multi": "~1.0.1",
     "mochawesome": "~3.1.1",
-    "nativescript-dev-appium": "~5.0.0",
+    "nativescript-dev-appium": "~5.2.0",
     "tslint": "~5.11.0"
   },
   "readme": "NativeScript DateTimePicker Demo NG"