MULTIARCH-5449: Updated release steps

[AnnaZivkovic]

Update the release steps to match our current release process.
Example of release steps for v.1.1.1: https://redhat-internal.slack.com/archives/C06ECDGH4LE/p1747763204767789

[openshift-ci-robot]

@AnnaZivkovic: This pull request references MULTIARCH-5449 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the task to target the "4.21.0" version, but no target version was set.

In response to this:

Update the release steps to match our current release process.
Example of release steps for v.1.1.1: https://redhat-internal.slack.com/archives/C06ECDGH4LE/p1747763204767789

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[lwan-wanglin]

/retest

[lwan-wanglin]

/lgtm
/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: AnnaZivkovic, lwan-wanglin

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