ssh provider has limit to sshtunnel  < 0.2
https://github.com/apache/airflow/blob/9d6ae609b60449bd274c2f96e72486d73ad2b8f9/setup.py#L451

I don't know why? sshtunnel  already released 0.4
I didn't open PR because I don't know this provider i just tried to install it and couldn't due to conflicts with other requirements in my system so eventually i used vitrual env to solve my problem but logging this issue so that someone who knows this code can handle it.
airflow/providers/ssh/hooks/ssh.py
"""Returns custom field behaviour"""
        return {
            "hidden_fields": ['schema'],
            "relabeling": {
                'login': 'Username',
            },
        }
    def __init__(
        self,
        ssh_conn_id: Optional[str] = None,
        remote_host: Optional[str] = None,
        username: Optional[str] = None,
        password: Optional[str] = None,
        key_file: Optional[str] = None,
        port: Optional[int] = None,