Udpdate HTTPS valid response code for test

Changes:
     - Added HTTP_NO_CONTENT as valid response code for
       the test PATCH request

Tested:
     - Tested on sandbox with changes

Change-Id: I2d1c1566fd99336d06dbb59e4c08e1fc25d44b6e
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/redfish/account_service/test_user_account.robot b/redfish/account_service/test_user_account.robot
index 40d82b1..b7c1f9b 100644
--- a/redfish/account_service/test_user_account.robot
+++ b/redfish/account_service/test_user_account.robot
@@ -225,10 +225,12 @@
     # Update admin_user username using Redfish.
     ${payload}=  Create Dictionary  UserName=newadmin_user
     Redfish.Patch  /redfish/v1/AccountService/Accounts/admin_user  body=&{payload}
+    ...  valid_status_codes=[${HTTP_OK}, ${HTTP_NO_CONTENT}]
 
     # Update readonly_user role using Redfish.
     ${payload}=  Create Dictionary  RoleId=Administrator
     Redfish.Patch  /redfish/v1/AccountService/Accounts/readonly_user  body=&{payload}
+    ...  valid_status_codes=[${HTTP_OK}, ${HTTP_NO_CONTENT}]
 
     # Verify users after updating
     Redfish Verify User  newadmin_user  TestPwd123     Administrator   ${True}