Re-add tag specification for Hive.

[dgoodwin]

We would like images published regularly by CI but are not yet part of
the origin release, so this change uses a hive-v4.0 tag instead of the
main origin one.

[stevekuznetsov]

/lgtm

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dgoodwin, stevekuznetsov

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Needs approval from an approver in each of these files:

• ci-operator/config/openshift/hive/OWNERS [dgoodwin,stevekuznetsov]
• ci-operator/jobs/openshift/hive/OWNERS [dgoodwin,stevekuznetsov]

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[openshift-ci-robot]

@dgoodwin: Updated the following 2 configmaps:

• job-config configmap using the following files:
  • key openshift-hive-master-postsubmits.yaml using file ci-operator/jobs/openshift/hive/openshift-hive-master-postsubmits.yaml
• ci-operator-configs configmap using the following files:
  • key openshift-hive-master.yaml using file ci-operator/config/openshift/hive/openshift-hive-master.yaml

In response to this:

We would like images published regularly by CI but are not yet part of
the origin release, so this change uses a hive-v4.0 tag instead of the
main origin one.

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