Incorrect configuration in doc https://is.docs.wso2.com/en/latest/setup/customizing-secure-vault/

[pathberiya]

Please fix the configuration here [1]. It is not working.

Currently, this must be configured in the secret-conf.properties, not in the deployment.toml

[1] https://is.docs.wso2.com/en/latest/setup/customizing-secure-vault/#step-1-creating-a-secret-callback-handler