Description of problem:
Doing manual ovn sync:
neutron-ovn-db-sync-util --config-file=/etc/neutron/neutron.conf --config-file=/etc/neutron/plugins/ml2/ml2_conf.ini --ovn-neutron_sync_mode repair

Misidentifies Octavia OVN Load Balancer Health Monitor Port and Deletes Metadata Port:

47:2023-09-28 13:22:29.565 2053 WARNING neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.ovn_db_sync [req-b037dd97-5936-4981-b0be-d4c88c6e806d - - - - -] Unnecessary DHCP port 77cc790a-1712-4fc2-b184-918842588a06 for network dd8dbcd7-0f6f-424f-aa2e-256630af44fd found in Neutron
48:2023-09-28 13:22:29.565 2053 WARNING neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.ovn_db_sync [req-b037dd97-5936-4981-b0be-d4c88c6e806d - - - - -] Deleting unnecessary DHCP port 77cc790a-1712-4fc2-b184-918842588a06 for network dd8dbcd7-0f6f-424f-aa2e-256630af44fd

OVN LB health monitor port got .3 IP, and metadata uses it now as its port:

ip netns exec ovnmeta-dd8dbcd7-0f6f-424f-aa2e-256630af44fd ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: tapdd8dbcd7-01@if2868: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether fa:16:3e:c9:12:45 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 169.254.169.254/32 brd 169.254.169.254 scope global tapdd8dbcd7-01
       valid_lft forever preferred_lft forever
    inet 192.168.100.3/24 brd 192.168.100.255 scope global tapdd8dbcd7-01
       valid_lft forever preferred_lft forever

openstack port show ovn-lb-hm-b7383d04-9220-48cd-bac9-3e2c53ad2d5f
+-------------------------+------------------------------------------------------------------------------+
| Field | Value |
+-------------------------+------------------------------------------------------------------------------+
| admin_state_up | UP |
| allowed_address_pairs | |
| binding_host_id | |
| binding_profile | |
| binding_vif_details | |
| binding_vif_type | unbound |
| binding_vnic_type | normal |
| created_at | 2023-09-14T12:30:30Z |
| data_plane_status | None |
| description | |
| device_id | |
| device_owner | network:distributed |
| device_profile | None |
| dns_assignment | None |
| dns_domain | None |
| dns_name | None |
| extra_dhcp_opts | |
| fixed_ips | ip_address='192.168.100.3', subnet_id='b7383d04-9220-48cd-bac9-3e2c53ad2d5f' |
| id | 2831bc8f-60e4-4a44-88e1-f3010cce3cbd |
| ip_allocation | None |
| mac_address | fa:16:3e:c9:12:45 |
| name | ovn-lb-hm-b7383d04-9220-48cd-bac9-3e2c53ad2d5f |
| network_id | dd8dbcd7-0f6f-424f-aa2e-256630af44fd |
| numa_affinity_policy | None |
| port_security_enabled | False |
| project_id | e4529e5a687e4128af2935fb33cfa7c2 |
| propagate_uplink_status | None |
| qos_network_policy_id | None |
| qos_policy_id | None |
| resource_request | None |
| revision_number | 1 |
| security_group_ids | |
| status | DOWN |
| tags | |
| trunk_details | None |
| updated_at | 2023-09-14T12:30:30Z |
+-------------------------+------------------------------------------------------------------------------+

Workaround - removed health monitor, readded manually ovnmeta port, restart metadata agents.

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


How reproducible:
Easily having a OVN LB HM port with device_owner=network:distributed and another ovn-metadata ports.

Steps to Reproduce:
1. Create a OVN LB Health monitor 
2. Run neutron-db-sync tool

Actual results:
OVN-metadata port will dissapear if its uuid is "bigger" than the OVN LB HM port uuid.

Expected results:
OVN metadata and OVN LB HM port are not deleted.