SSH module is not catching ConnectionRefusedError

[acerv]

Apparently ConnectionRefusedError is not catched by asyncssh library, so we need to do it manually inside kirk.

  File "/root/.venv_kirk-virtualenv/lib64/python3.11/site-packages/asyncssh/connection.py", line 9186, in connect
    return await asyncio.wait_for(
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/python3.11/asyncio/tasks.py", line 452, in wait_for
    return await fut
           ^^^^^^^^^
  File "/root/.venv_kirk-virtualenv/lib64/python3.11/site-packages/asyncssh/connection.py", line 516, in _connect
    _, session = await loop.create_connection(
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/python3.11/asyncio/base_events.py", line 1086, in create_connection
    raise exceptions[0]
  File "/usr/lib64/python3.11/asyncio/base_events.py", line 1070, in create_connection
    sock = await self._connect_sock(
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/python3.11/asyncio/base_events.py", line 974, in _connect_sock
    await self.sock_connect(sock, address)
  File "/usr/lib64/python3.11/asyncio/selector_events.py", line 638, in sock_connect
    return await fut
           ^^^^^^^^^
  File "/usr/lib64/python3.11/asyncio/selector_events.py", line 678, in _sock_connect_cb
    raise OSError(err, f'Connect call failed {address}')
ConnectionRefusedError: [Errno 111] Connect call failed ('XX.XX.XX.XX', 22)