fix(appium): add await for async function (#20974)

packages/appium/lib/appium.js

@@ -418,7 +418,7 @@ class AppiumDriver extends DriverCore {
       );
 
       // set the New Command Timeout for the inner driver
-      driverInstance.startNewCommandTimeout();
+      await driverInstance.startNewCommandTimeout();
 
       // apply initial values to Appium settings (if provided)
       if (driverInstance.isW3CProtocol() && !_.isEmpty(w3cSettings)) {