chore(deps): update konflux references to 2d439dc release-4.21

[red-hat-konflux]

This PR contains the following updates:

Package	Change
quay.io/konflux-ci/tekton-catalog/task-ecosystem-cert-preflight-checks (source, changelog)	b4ac586 → 2d439dc

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[openshift-ci-robot]

@red-hat-konflux[bot]: No Jira issue is referenced in the title of this pull request.
To reference a jira issue, add 'XYZ-NNN:' to the title of this pull request and request another refresh with /jira refresh.

Retaining the jira/valid-reference label as it was manually added.

Details

In response to this:

This PR contains the following updates:

Package	Change
quay.io/konflux-ci/tekton-catalog/task-ecosystem-cert-preflight-checks (source, changelog)	b4ac586 → 2d439dc

---

Configuration

📅 Schedule: Branch creation - "on Tuesday" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

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• If you want to rebase/retry this PR, check this box

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To execute skipped test pipelines write comment /ok-to-test.

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Find out how to configure dependency updates in MintMaker documentation or see all available configuration options in Renovate documentation.

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

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[openshift-ci]

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