typo error

### Describe the bug

typo error -> "kearn"

### Expected behavior

kearn -> learn

### Actual behavior

_No response_

### How to Reproduce?

_No response_

### Microcks version or git rev

_No response_

### Install method (`docker-compose`, `helm chart`, `operator`, `docker-desktop extension`,...)

_No response_

### Additional information

_No response_