fix appium version to latest (#762)

Author: eyaly

wd-java-testng/src/test/java/com/example/TestUtils.java

@@ -72,7 +72,7 @@ private static MutableCapabilities getAndroidCapabilities() {
         caps.setCapability("browserName", "Chrome");
         caps.setCapability("platformName", "Android");
         MutableCapabilities sauceOptions = new MutableCapabilities();
-        sauceOptions.setCapability("appiumVersion", "2.0.0");
+        sauceOptions.setCapability("appiumVersion", "latest");
         caps.setCapability("sauce:options", sauceOptions);
         return caps;
     }
@@ -94,7 +94,7 @@ private static MutableCapabilities getIosCapabilities() {
         caps.setCapability("browserName", "Safari");
         caps.setCapability("platformName", "iOS");
         MutableCapabilities sauceOptions = new MutableCapabilities();
-        sauceOptions.setCapability("appiumVersion", "2.0.0");
+        sauceOptions.setCapability("appiumVersion", "latest");
         caps.setCapability("sauce:options", sauceOptions);
         return caps;
     }