Update kuttl to v0.15.0 in the scorecard-test-kuttl image

[andreasgerstmayr]

Description of the change:
Update kuttl to v0.15.0 in the scorecard-test-kuttl image

Motivation for the change:
Fixes cleanup of created resources in kuttl (created resources of a kuttl test will be deleted after the test is run).
This change is especially relevant when using a single namespace for testing (default with this image).
See https://github.com/kudobuilder/kuttl/releases/tag/v0.14.0

Checklist
If the pull request includes user-facing changes, extra documentation is required:

• Add a new changelog fragment in changelog/fragments (see changelog/fragments/00-template.yaml)
• Add or update relevant sections of the docs website in website/content/en/docs

[pavolloffay]

@oceanc80 @everettraven could we move this PR forward? It's blocking us in open-telemetry/opentelemetry-operator#1721

[everettraven]

/lgtm

[pavolloffay]

@oceanc80 @everettraven could we please merge the PR?

[everettraven]

Closing and re-opening to pick up latest CI changes/fixes

[pavolloffay]

@oceanc80 @everettraven when can we expect this to be released?

[everettraven]

@pavolloffay this should be included in the v1.29.0 release which is currently slated for May 31st

[andreasgerstmayr]

@pavolloffay this should be included in the v1.29.0 release which is currently slated for May 31st

Great, thanks for merging!

[andreasgerstmayr]

@everettraven do you know when the container image at https://quay.io/repository/operator-framework/scorecard-test-kuttl?tab=tags&tag=latest gets tagged with a new version?

[everettraven]

@andreasgerstmayr I would have assumed with the 1.29.0 release it would have happened but that doesn't seem to be the case ... Would you mind opening a new issue regarding this so we can track it and get some eyes on it?

[andreasgerstmayr]

@everettraven sure, I've created #6456. Thanks!