openstackclient should't return project-id when executing 'network flavor profile create

[Miguel Lavalle]

Neutron's service profile doesn't have a project-id attribute:

https://github.com/openstack/neutron/blob/dcccd7cabe9fa959c88b477e55ad47b815d52518/neutron/db/models/flavor.py#L28

https://docs.openstack.org/api-ref/network/v2/index.html#create-service-profile

Yet the client returns it as None:

$ openstack network flavor profile create --description "User-defined router flavor profile" --enable --driver neutron.services.ovn_l3.service_providers.user_defined.UserDefined
+-------------+--------------------------------------------------------------------+
| Field | Value |
+-------------+--------------------------------------------------------------------+
| description | User-defined router flavor profile |
| driver | neutron.services.ovn_l3.service_providers.user_defined.UserDefined |
| enabled | True |
| id | d30de4b9-3fb4-41c4-9b7a-ff148188b6ed |
| meta_info | |
| project_id | None |
+-------------+--------------------------------------------------------------------+

$ openstack network flavor profile show d30de4b9-3fb4-41c4-9b7a-ff148188b6ed
+-------------+--------------------------------------------------------------------+
| Field | Value |
+-------------+--------------------------------------------------------------------+
| description | User-defined router flavor profile |
| driver | neutron.services.ovn_l3.service_providers.user_defined.UserDefined |
| enabled | True |
| id | d30de4b9-3fb4-41c4-9b7a-ff148188b6ed |
| meta_info | |
| project_id | None |
+-------------+--------------------------------------------------------------------+