OCPBUGS-66991: bump buildah to 1.39.7 to fix CVE-2019-16884

[Moebasim]

This bump buildah from 1.39.0 to 1.39.7 to fix CVE-2025-52881

[openshift-ci-robot]

@Moebasim: This pull request references Jira Issue OCPBUGS-66991, which is invalid:

• release note text must be set and not match the template OR release note type must be set to "Release Note Not Required". For more information you can reference the OpenShift Bug Process.
• expected Jira Issue OCPBUGS-66991 to depend on a bug targeting a version in 4.21.0 and in one of the following states: VERIFIED, RELEASE PENDING, CLOSED (ERRATA), CLOSED (CURRENT RELEASE), CLOSED (DONE), CLOSED (DONE-ERRATA), but no dependents were found

Comment /jira refresh to re-evaluate validity if changes to the Jira bug are made, or edit the title of this pull request to link to a different bug.

The bug has been updated to refer to the pull request using the external bug tracker.

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In response to this:

This bump buildah from 1.39.0 to 1.39.7 to fix CVE-2025-52881

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Moebasim

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[openshift-ci]

@Moebasim: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/security	53c10d4	link	false	/test security

Full PR test history. Your PR dashboard.

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