Minor fixes to request payloads

Author: vchavatapalli

samples/update_connection_auth.py

@@ -51,7 +51,7 @@ def main():
         connection = connections[0]
         connection.username = args.datasource_username
         connection.password = args.datasource_password
-        connection.authentication_type = args.authentication_type
+        connection.auth_type = args.authentication_type
         connection.embed_password = True
 
         updated_connection = update_function(resource, connection)

tableauserverclient/server/request_factory.py

@@ -1162,6 +1162,8 @@ def update_req(self, xml_request: ET.Element, connection_item: "ConnectionItem")
             connection_element.attrib["userName"] = connection_item.username
         if connection_item.password is not None:
             connection_element.attrib["password"] = connection_item.password
+        if connection_item.auth_type is not None:
+            connection_element.attrib["authenticationType"] = connection_item.auth_type
         if connection_item.embed_password is not None:
             connection_element.attrib["embedPassword"] = str(connection_item.embed_password).lower()
         if connection_item.query_tagging is not None: