Unable to interpolate string - hyphenated variables

I'm facing an issue when I'm trying to reference a `steps.<id>.outputs.<variable>` with  an id composed with `-`.

```
Run echo ${{ steps.login-ecr.outputs.registry }}
ERRO[0005] Unable to interpolate string 'echo ${{ steps.login-ecr.outputs.registry }}' - [ReferenceError: 'ecr' is not defined] 
```

_Workaround; remove all `-` in id names._