Update gcp-openshift.md

[pbertera]

updated apiVersion to `v1alpha1

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: pbertera To complete the pull request process, please assign arjunrn after the PR has been reviewed. You can assign the PR to them by writing /assign @arjunrn in a comment when ready.

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Needs approval from an approver in each of these files: - **[OWNERS](https://github.com/openshift/external-dns-operator/blob/main/OWNERS)** Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[openshift-ci[bot]]

Hi @pbertera. Thanks for your PR.

I'm waiting for a openshift member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[alebedev87]

@pbertera : ExternalDNS API has been graduated to v1beta1, so all the examples should be using the latest version.

[pbertera]

Yes, I see, my bad. I'm closing this