Description of problem:
From upstream repo:
https://github.com/ManageIQ/manageiq/blob/09b4f87eb047b4cd9c1284c42dde22ac87ea073d/app/models/manageiq/providers/openstack/network_manager/refresh_parser.rb#L51

The type of Openstack Network Manager is ManageIQ::Providers::Openstack::NetworkManager but not ManageIQ::Providers::Openstack::CloudManager.

In this way network manager refresh worker collect objects from openstack by looping over all tenants but should use one api call by admin user if I set ems.ems_openstack.refresh.is_admin = true in advanced configuration.

On my test environment I set the following override and this work well:

~~~~~~~~~
    def get_inventory_collection(collection_type)
      @network_service.handled_list(collection_type, {}, ::Settings.ems.ems_openstack.refresh.is_admin)
    end
~~~~~~~~~

Version-Release number of selected component (if applicable):
4.5

How reproducible:
always

Steps to Reproduce:
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Actual results:


Expected results:


Additional info: