chore: update dev appium to 4.0.9

Author: Zdravko Branzov

appium.capabilities.json renamed to demo/e2e/config/appium.capabilities.json

@@ -26,7 +26,7 @@
     "karma-nativescript-launcher": "^0.4.0",
     "mocha": "~5.2.0",
     "nativescript-css-loader": "~0.26.0",
-    "nativescript-dev-appium": "3.2.0",
+    "nativescript-dev-appium": "4.0.9",
     "nativescript-dev-typescript": "~0.7.0",
     "nativescript-dev-webpack": "~0.18.0",
     "tns-platform-declarations": "^5.1.0",
@@ -40,4 +40,4 @@
     "e2e": "tsc -p e2e && mocha --opts ./e2e/config/mocha.opts",
     "compile-tests": "tsc -p e2e --watch"
   }
-}
+}