Not documented parameter on python API

[Gabrielllopes]

I was trying to use the python secrets API to create a secret, but there is no mention anywhere (that I could found, at least) of the 'bytes_value'.

File: https://github.com/databricks/databricks-cli/blob/main/databricks_cli/secrets/api.py
Line: 42

def put_secret(self, scope, key, string_value, bytes_value):
        return self.client.put_secret(scope, key, string_value, bytes_value)