Update DuoAuth.yml

Adding default value for pushinfo

Packs/DuoAuth/Integrations/DuoAuth/DuoAuth.yml

@@ -45,6 +45,7 @@ script:
       name: username
       required: true
     - description: "A set of URL-encoded key/value pairs with additional contextual information associated with this authentication attempt. The Duo Mobile app will display this information to the user. For example: from=login%20portal&domain=example.com, The URL-encoded string's total length must be less than 20,000 bytes."
+      defaultValue: "From=XSOAR&Confirm=Write%20your%20message%20here..."
       name: pushinfo
     - defaultValue: "Activities"
       description: This string is displayed in the Duo Mobile app push notification and UI.