ci: modify Konflux pipelines

[osmman]

Migrated Konflux pipeline based on OLM operator example

https://github.com/konflux-ci/olm-operator-konflux-sample

[osmman]

/override "Test upgrade operator"

[openshift-ci]

@osmman: Overrode contexts on behalf of osmman: Test upgrade operator

In response to this:

/override "Test upgrade operator"

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[tommyd450]

@osmman is there a reason you are chaining the pipelines? Rather than having them be in the one tekton file? Im also going to re run Konflux builds as the tasks on Konflux are not reporting much .

[tommyd450]

/retest

[osmman]

@osmman is there a reason you are chaining the pipelines? Rather than having them be in the one tekton file? Im also going to re run Konflux builds as the tasks on Konflux are not reporting much .

I’m chaining the pipelines to avoid duplicating code for push and pull_request pipelines. This approach makes it easier to add new steps, like unit tests, in future updates. I followed the Konflux example for this setup.

There has been added new step to build-image-index which enable to have images for multiple architectures.

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: osmman, tommyd450

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