test(android): increase adbExecTimeout in ClipboardTest (appium#1079)

* fix: increase adbExecTimeout in Android ClipboardTest to 60s

* fix: remove redundant appium: prefix from adbExecTimeout capability

Author: Dor-bl

test/integration/Android/ClipboardTest.cs

@@ -1,4 +1,4 @@
-using Appium.Net.Integration.Tests.helpers;
+using Appium.Net.Integration.Tests.helpers;
 using NUnit.Framework;
 using OpenQA.Selenium.Appium.Android;
 using OpenQA.Selenium.Appium.Enums;
@@ -24,6 +24,7 @@ public void BeforeAll()
         {
             var capabilities = Caps.GetAndroidUIAutomatorCaps(Apps.Get("androidApiDemos"));
             capabilities.AddAdditionalAppiumOption(MobileCapabilityType.FullReset, true);
+            capabilities.AddAdditionalAppiumOption("adbExecTimeout", 60000);
             var serverUri = Env.ServerIsRemote() ? AppiumServers.RemoteServerUri : AppiumServers.LocalServiceUri;
             _driver = new AndroidDriver(serverUri, capabilities, Env.InitTimeoutSec);
             _driver.Manage().Timeouts().ImplicitWait = Env.ImplicitTimeoutSec;