Print child ID and error if command failed

[saschagrunert]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

This helps to increase the verbosity around error handling.

Which issue(s) this PR fixes:

None

Special notes for your reviewer:

None

Does this PR introduce a user-facing change?

None

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 63.23%. Comparing base (4e0f474) to head (1cf5264). Report is 726 commits behind head on main.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2413 +/- ## =========================================== + Coverage 37.53% 63.23% +25.69% =========================================== Files 15 121 +106 Lines 1268 4007 +2739 Branches 414 830 +416 =========================================== + Hits 476 2534 +2058 - Misses 526 1473 +947 + Partials 266 0 -266 ```

[saschagrunert]

Rebased

[kwilczynski]

/approve /lgtm

[saschagrunert]

Rebased again.

[kwilczynski]

/approve /lgtm

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kwilczynski, saschagrunert

The full list of commands accepted by this bot can be found here.

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/containers/conmon-rs/blob/main/OWNERS)~~ [saschagrunert] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment