Airflow 2.1.0, Docker

**What happened**:

Users with the Guest role assigned are stuck in a redirect loop once they attempt to login successfully to the web interface.

**What you expected to happen**:

Get minimal access to the dashboard with the appropriate views for a guest role

**How to reproduce it**:
1. Assign a guest role to any user and remove any other roles with the administrator user.
2. Logout from the admin account 
3. Login as the guest user
4. You will notice constant HTTP redirects, and the dashboard will not show up.


airflow/www/security.py
"""
        Creates a permission linking an action and resource.
        :param action_name: Name of existing action
        :type action_name: str
        :param resource_name: Name of existing resource
        :type resource_name: str
        :return: Resource created
        :rtype: PermissionView
        """
        return self.add_permission_view_menu(action_name, resource_name)
    def delete_permission(self, action_name: str, resource_name: str) -> None:
        """
        Deletes the permission linking an action->resource pair. Doesn't delete the
        underlying action or resource.
        :param action_name: Name of existing action
        :type action_name: str
        :param resource_name: Name of existing resource
        :type resource_name: str
        :return: None
        :rtype: None
        """
        self.del_permission_view_menu(action_name, resource_name)
    def delete_role(self, role_name):