[Bug]: `dstack server` is not compatible with `paramiko<3.2`

[un-def]

Steps to reproduce

server side:

pip install 'dstack[all]'

pip install 'paramiko<3.2'

pip freeze | grep paramiko
paramiko==3.1.0

pip check
No broken requirements found.

dstack server

client side:

cat fleet.dstack.yml
type: fleet
name: vm-fleet
ssh_config:
  user: debian
  identity_file: ~/.ssh/vm_debian12
  hosts:
    - 192.168.122.75

cat ~/.ssh/vm_debian12.pub
ssh-rsa <KEY_CONTENT> debian@debian

dstack apply -f fleet.dstack.yml

Actual behaviour

See Server logs

Expected behaviour

No response

dstack version

0.18.24

Server logs

[07:26:15] INFO     dstack._internal.server.background.tasks.process_instances:217 Adding ssh instance vm-fleet-0...
           WARNING  dstack._internal.server.background.tasks.process_instances:281 Provisioning instance vm-fleet-0 could not be completed because of the error: Deploy instance raised an error: 'RSAKey' object has no attribute 'fingerprint'

Additional information

No response

[un-def]

Affects bot SSH and cloud instance provisioning (SSH via get_paramiko_connection(), CUDO and DataCrunch backends via get_public_key_fingerprint())