Input Artifacts with keep_input_artifact=false shouldn't be sent to HCP Packer

[nywilken]

There is a bug where setting keep_input_artifact=false registers the builder output as an image even though it has been deleted.

This will be a little tricky to address since keep_input_artifact is set on the next post processor, not the current one. We don't have a DAG so parsing whether an artifact should be saved may be challenging.

[azr]

I think that this should be achievable without the dag work (in a complex manner).

[github-actions]

This issue has been synced to JIRA for planning.

JIRA ID: HPR-754

[nywilken]

Closed by #11967

[github-actions]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
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