"Add deployed machines" feature does not add interfaces into MAAS

[maasuser1]

Describe the bug:
So, whatever, I manually deployed an Ubuntu server using Ubuntu's official ISO and used the [instruction](https://maas.io/docs/how-to-provision-machines#p-9078-add-deployed-machines:~:text=SYSTEM_ID%20install_kvm%3DTrue-,Add%20deployed%20machines,-MAAS%20can%20add) adding it to the MAAS. However, the "networks", "storage" and "PCI devices" tabs remain empty.

Steps to reproduce:
Manually deploy an Ubuntu server instance and add it to the MAAS as a deployed machine.

Expected behavior (what should have happened?):
The maas-run-script should perform a commission and collect those specs and report to MAAS.

Actual behavior (what actually happened?):
It only creates a machine entry on MAAS.

MAAS version and installation type (deb, snap):
3.5.3 stable

MAAS setup (HA, single node, multiple regions/racks):
doesn't matter

Host OS distro and version:
ubuntu 22.04

Additional context:

[maasuser1 (maasuser1)]

The "commission" button is grayed out.

[maasuser1 (maasuser1)]

Commission scripts are shown as "Pending".

[Jacopo Rota (r00ta)]

Without additional information such as logs it’s impossible to reproduce this bug. I have to mark this as incomplete until additional investigation or information are provided

[maasuser1 (maasuser1)]

Hi r00ta, I checked the `journalctl` on MAAS and did not see anything suspicious. May I ask you to manually deploy an Ubuntu server using the official ISO and then add it to MAAS to see what happened?

```
Feb 04 17:39:23 maas maas-log[1513]: maas.api: [info] ritchie: Enlisted new machine
```

Except for this line, other logs are either `named` `dhcpd` and `pebble`.

[Jacopo Rota (r00ta)]

> May I ask you to manually deploy an Ubuntu server using the official ISO and then add it to MAAS to see what happened?

We'll give a try

[Jacopo Rota (r00ta)]

I think you simply used `maas-run-scripts register-machine`. You should also enable HW sync in order to get your hardware info into MAAS

[maasuser1 (maasuser1)]

Hello r00ta, shall I follow [this](https://maas.io/docs/how-to-provision-machines#p-9078-set-hardware-sync) guide? Thanks

[maasuser1 (maasuser1)]

It doesn't work - there it no option provided to enable HW sync for a machine already deployed out of maas.

[Jacopo Rota (r00ta)]

You can run the hw sync on a deployed machine. You just need to run

```
maas-run-scripts report-results --config maas-creds.yaml
```

from the deployed machine - see https://maas.io/docs/reference-release-notes-maas-3-1#p-11417-how-to-update-hardware-information-for-a-deployed-machine