CLI options definitions were upgraded with "type" property

[apinto2-scc]

When I run a serverless deploy, I've this message.

CLI options definitions were upgraded with "type" property (which could be one of "string", "boolean", "multiple"). Below listed plugins do not predefine type for introduced options:
 - OpenWhiskConfigCredentials for "apihost", "auth"
Please report this issue in plugin issue tracker.
Starting with next major release, this will be communicated with a thrown error.
More info: https://serverless.com/framework/docs/deprecations/#CLI_OPTIONS_SCHEMA_V3