SSH hadnshake failure in packer 1.8.6

I previously reported a similar bug here hashicorp/packer#11656 but since I couldn't comment there , I am opening up a new issue here.

Packer version: 1.8.6
Tested with: CentOS Stream 9 and Ubuntu 22.04

**Error:**

`Error waiting for SSH: Packer experienced an authentication error when trying to connect via SSH. This can happen if your username/password are wrong. You may want to double-check your credentials as part of your debugging process. original error: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain`

**Packer log:**

```
2023/04/25 12:12:55 ui: ==> openstack: Using SSH communicator to connect: xx.xx.xx.xx
2023/04/25 12:12:55 packer-builder-openstack plugin: [INFO] Waiting for SSH, up to timeout: 5m0s
2023/04/25 12:12:55 ui: ==> openstack: Waiting for SSH to become available...
2023/04/25 12:12:55 packer-builder-openstack plugin: [DEBUG] Using floating IP xx.xx.xx.xx to connect
2023/04/25 12:12:57 packer-builder-openstack plugin: [DEBUG] TCP connection to SSH ip/port failed: dial tcp xx.xx.xx.xx:22: connect: connection refused
2023/04/25 12:13:02 packer-builder-openstack plugin: [DEBUG] Using floating IP xx.xx.xx.xx to connect
2023/04/25 12:13:02 packer-builder-openstack plugin: [DEBUG] TCP connection to SSH ip/port failed: dial tcp xx.xx.xx.xx:22: connect: connection refused
2023/04/25 12:13:07 packer-builder-openstack plugin: [DEBUG] Using floating IP xx.xx.xx.xx to connect
2023/04/25 12:13:07 packer-builder-openstack plugin: [DEBUG] TCP connection to SSH ip/port failed: dial tcp xx.xx.xx.xx:22: connect: connection refused
2023/04/25 12:13:12 packer-builder-openstack plugin: [DEBUG] Using floating IP xx.xx.xx.xx to connect
2023/04/25 12:13:12 packer-builder-openstack plugin: [INFO] Attempting SSH connection to xx.xx.xx.xx:22...
2023/04/25 12:13:12 packer-builder-openstack plugin: [DEBUG] reconnecting to TCP connection for SSH
```

**Workaround:**
Adding the following in builder template works:
`"temporary_key_pair_type": "ed25519"`

Inizia con il percorso di connessione SSH dell’OpenStack builder e riproduci il log Packer 1.8.6 fornito su CentOS Stream 9 o Ubuntu 22.04. Confronta il template predefinito del builder con il valore temporary_key_pair_type segnalato; il lavoro è completato quando la configurazione predefinita esegue correttamente l’autenticazione senza la soluzione alternativa.

Scritto dal modello di indicizzazione a partire dal testo della issue.