### Body

SSHHook uses the default stacklevel (1) in its deprecation warning, it should be 2:
https://github.com/apache/airflow/blob/b11525702c72cb53034aa29ccd6d0e1161ac475c/airflow/providers/ssh/hooks/ssh.py#L433-L439
https://github.com/apache/airflow/blob/b11525702c72cb53034aa29ccd6d0e1161ac475c/airflow/providers/ssh/hooks/ssh.py#L369-L374
https://github.com/apache/airflow/blob/b11525702c72cb53034aa29ccd6d0e1161ac475c/airflow/providers/ssh/hooks/ssh.py#L232-L238

### Committer

- [X] I acknowledge that I am a maintainer/committer of the Apache Airflow project.
self.cmd_timeout = CMD_TIMEOUT
        if self.pkey and self.key_file:
            raise AirflowException(
                "Params key_file and private_key both provided.  Must provide no more than one."
            )
        if not self.remote_host:
            raise AirflowException("Missing required param: remote_host")
        
        if not self.username:
            self.log.debug(
                "username to ssh to host: %s is not specified for connection id"
                " %s. Using system's default provided by getpass.getuser()",
                self.remote_host,
                self.ssh_conn_id,
            )
            self.username = getuser()
        user_ssh_config_filename = os.path.expanduser("~/.ssh/config")
        if os.path.isfile(user_ssh_config_filename):
            ssh_conf = paramiko.SSHConfig()
            with open(user_ssh_config_filename) as config_fd:
                ssh_conf.parse(config_fd)
            host_info = ssh_conf.lookup(self.remote_host)
            if host_info and host_info.get("proxycommand"):
                self.host_proxy_cmd = host_info["proxycommand"]
            if not (self.password or self.key_file):
                if host_info and host_info.get("identityfile"):
                    self.key_file = host_info["identityfile"][0]
        self.port = self.port or SSH_PORT
    @cached_property
    def host_proxy(self) -> paramiko.ProxyCommand | None: