Unable to login with robot account harbor-cli v0.0.18, harbor v2.13.1-9384ed0e

Using `harbor-cli` version 0.0.18 on a mac installed via homebrew we are unable to log into robot accounts on a Harbor server running `v2.13.1-9384ed0e`. We've tried multiple robot accounts. All have failed. Regular user account credentials succeed.

Command line:
`harbor login -u 'abcd_xyz+xyz-delivery' -p ThePassword`

Response
```
Error: login failed: &{false 0001-01-01T00:00:00.000Z false 0001-01-01T00:00:00.000Z 0 } (*models.UserResp) is not supported by the TextConsumer, can be resolved by supporting TextUnmarshaler interface
```