chore: update 'autocomplete' demo for nativescript-ui-autocomplete v6.0.1

Author: nsplugins

autocomplete/app/examples/customization/autocomplete-customization.component.html

@@ -10,4 +10,6 @@
             </ng-template>
         </SuggestionView>
     </RadAutoCompleteTextView>
+    <Label text="For testing"></Label>
+    <TextView automationText="testing" hint="For testing"></TextView>
 </StackLayout>

autocomplete/package.json

@@ -48,9 +48,9 @@
     "mocha-multi-reporters": "^1.1.0",
     "mochawesome": "^3.1.1",
     "nativescript-css-loader": "~0.26.0",
-    "nativescript-dev-appium": "6.0.1-2019-08-30-02",
+    "nativescript-dev-appium": "^6.0.0",
     "nativescript-dev-webpack": "^1.3.0",
-    "tns-platform-declarations": "^6.2.0",
+    "tns-platform-declarations": "^6.4.2",
     "tslint": "~5.11.0",
     "typescript": "~3.5.3"
   }