**Description**

To add a new flag to be able to disable SSL in Tableau connection( {"verify": "False"}? ) as it is not present in the current version, apache-airflow-providers-tableau 1.0.0

**Use case / motivation**

 Unable to disable SSL in Tableau connection and therefore unable to use the TableauRefreshWorkbook operator 

**Are you willing to submit a PR?**

NO

**Related Issues**

NO

airflow/providers/tableau/hooks/tableau.py
super().__init__()
        self.tableau_conn_id = tableau_conn_id
        self.conn = self.get_connection(self.tableau_conn_id)
        self.site_id = site_id or self.conn.extra_dejson.get('site_id', '')
        self.server = Server(self.conn.host, use_server_version=True)
        self.tableau_conn = None
    def __enter__(self):
        if not self.tableau_conn:
            self.tableau_conn = self.get_conn()
        return self
    def __exit__(self, exc_type: Any, exc_val: Any, exc_tb: Any) -> None:
        self.server.auth.sign_out()
    def get_conn(self) -> Auth.contextmgr:
        """
        Signs in to the Tableau Server and automatically signs out if used as ContextManager.
        :return: an authorized Tableau Server Context Manager object.
        :rtype: tableauserverclient.server.Auth.contextmgr
        """
        if self.conn.login and self.conn.password:
            return self._auth_via_password()
        if 'token_name' in self.conn.extra_dejson and 'personal_access_token' in self.conn.extra_dejson:
            return self._auth_via_token()
        raise NotImplementedError('No Authentication method found for given Credentials!')
    def _auth_via_password(self) -> Auth.contextmgr: