external-id.hostname is overwritten on each openvswtich service start with ovs 3.1

In jammy/antelope repo openvswitch-common=3.1.0-1~cloud0 contain a buggy version of OVS that does not respect `ovs-vsctl add` command, so instead of appending values it does replace them.

```
root@aio1:/home/ubuntu# ovs-vsctl list open .|grep hostname
external_ids : {hostname=aio1.openstack.local, ovn-bridge-mappings="vlan:br-provider,lbaas:br-octavia", ovn-cms-options=enable-chassis-as-gw, ovn-encap-ip="172.29.240.100", ovn-encap-type=geneve, ovn-remote="ssl:172.29.236.100:6642", rundir="/var/run/openvswitch", system-id="bbad02ce-ab79-42c0-8f54-ce0b7e732c59"}
root@aio1:/home/ubuntu# ovs-vsctl set open_vswitch . external-ids:hostname=aio1
root@aio1:/home/ubuntu# ovs-vsctl list open .|grep hostname
external_ids : {hostname=aio1, ovn-bridge-mappings="vlan:br-provider,lbaas:br-octavia", ovn-cms-options=enable-chassis-as-gw, ovn-encap-ip="172.29.240.100", ovn-encap-type=geneve, ovn-remote="ssl:172.29.236.100:6642", rundir="/var/run/openvswitch", system-id="bbad02ce-ab79-42c0-8f54-ce0b7e732c59"}
root@aio1:/home/ubuntu# ovs-vsctl list open .|grep hostname
external_ids : {hostname=aio1.openstack.local, ovn-bridge-mappings="vlan:br-provider,lbaas:br-octavia", ovn-cms-options=enable-chassis-as-gw, ovn-encap-ip="172.29.240.100", ovn-encap-type=geneve, ovn-remote="ssl:172.29.236.100:6642", rundir="/var/run/openvswitch", system-id="bbad02ce-ab79-42c0-8f54-ce0b7e732c59"}
root@aio1:/home/ubuntu#

root@aio1:/home/ubuntu# apt info openvswitch-common
Package: openvswitch-common
Version: 3.1.0-1~cloud0
Priority: optional
Section: net
Source: openvswitch
Maintainer: Debian OpenStack <email address hidden>
Installed-Size: 3359 kB
Depends: openssl, python3:any, libc6 (>= 2.34), libcap-ng0 (>= 0.7.9), libssl3 (>= 3.0.0~~alpha1), libunbound8 (>= 1.8.0)
Suggests: ethtool, openvswitch-doc
Breaks: openvswitch-switch (<< 2.13.0~git20200212.15ae9db33-0ubuntu2~)
Replaces: openvswitch-switch (<< 2.13.0~git20200212.15ae9db33-0ubuntu2~)
Download-Size: 1061 kB
APT-Manual-Installed: yes
APT-Sources: http://ubuntu-cloud.archive.canonical.com/ubuntu jammy-updates/antelope/main amd64 Packages
Description: Open vSwitch common components
 Open vSwitch is a production quality, multilayer, software-based,
 Ethernet virtual switch. It is designed to enable massive network
 automation through programmatic extension, while still supporting
 standard management interfaces and protocols (e.g. NetFlow, IPFIX,
 sFlow, SPAN, RSPAN, CLI, LACP, 802.1ag). In addition, it is designed
 to support distribution across multiple physical servers similar to
 VMware's vNetwork distributed vswitch or Cisco's Nexus 1000V.
 .
 openvswitch-common provides components required by both openvswitch-switch
 and openvswitch-testcontroller.

N: There are 2 additional records. Please use the '-a' switch to see them.
root@aio1:/home/ubuntu#

```

This can be workarounded with setting `OPTIONS="--no-record-hostname"` in /etc/default/openvswitch-switch

Path in OVS has been already proposed: https://mail.openvswitch.org/pipermail/ovs-dev/2023-March/403255.html

Related bug to RDO: https://bugzilla.redhat.com/show_bug.cgi?id=2182767