ci: fix `try` step and input_mapping in k8s-smoke
ci: fix `try` step and input_mapping in k8s-smoke

Previously the `try` step didn't have the right indentation, making
`concourse` think that the step was just a `task`, not a `try` of a
`task.`

We also missed leaving the `input_mapping` for `image-info` when
removing the mapping for `endpoint-info`.

Signed-off-by: Bishoy Youssef <9b4d1ba1708a9b42aa1e22343aa1f23ecf97ab43@pivotal.io>
Co-authored-by: Ciro S. Costa <4f5054ab2db051d03adf9068233a850c82b24437@pivotal.io>

concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse