Description of problem:
When you have old DIC-created DVs and upgrade to >= 4.12.1, the old DVs and PVCs are never deleted by DIC garbage collection.

Encountered the issue in cnv2.engineering.redhat.com:
$ oc get pvc -n openshift-virtualization-os-images | grep rhel9
rhel9-35d9b2336799 Bound pvc-4d65b0e2-a8c8-4236-91be-7f0df7868ebc 30Gi RWX ocs-storagecluster-ceph-rbd 175d
rhel9-8350135038fe Bound pvc-9ee22647-9246-474b-b032-e51f5aea949d 30Gi RWX ocs-storagecluster-ceph-rbd 28d
rhel9-87d2b5f15665 Bound pvc-e139c7b3-a162-4627-94bb-29ef4ba5e939 30Gi RWX ocs-storagecluster-ceph-rbd 177d
rhel9-9d0d9575e03e Bound pvc-4ddde24f-daae-4e45-b9b7-752278d07c37 30Gi RWX ocs-storagecluster-ceph-rbd 70d
rhel9-d1d2fc222d93 Bound pvc-9f152d58-98ca-474c-b9b0-5a3b9d4615fa 30Gi RWX ocs-storagecluster-ceph-rbd 38m

The newer PVCs are labeled with the DataImportCron which will keep only the 3 (default) latest ones, and delete the older ones using the DIC controller internal GC.
$ oc get pvc -n openshift-virtualization-os-images rhel9-d1d2fc222d93 -o yaml | grep dataImportCron
cdi.kubevirt.io/dataImportCron: rhel9-image-cron
$ oc get pvc -n openshift-virtualization-os-images rhel9-8350135038fe -o yaml | grep dataImportCron
cdi.kubevirt.io/dataImportCron: rhel9-image-cron
$ oc get pvc -n openshift-virtualization-os-images rhel9-9d0d9575e03e -o yaml | grep dataImportCron
cdi.kubevirt.io/dataImportCron: rhel9-image-cron

The older PVCs (175d) don't have this label, so they are not candidates for garbage collection:
$ oc get pvc -n openshift-virtualization-os-images rhel9-35d9b2336799 -o yaml | grep dataImportCron
$ oc get pvc -n openshift-virtualization-os-images rhel9-87d2b5f15665 -o yaml | grep dataImportCron

Their DVs are the only ones who exist (it was before CDI DV GC was enabled by default in 4.12) and have the DataImportCron label:
$ oc get dv -n openshift-virtualization-os-images | grep rhel9
rhel9-35d9b2336799 Succeeded 100.0% 175d
rhel9-87d2b5f15665 Succeeded 100.0% 177d

$ oc get dv -n openshift-virtualization-os-images rhel9-35d9b2336799 -o yaml | grep dataImportCron
cdi.kubevirt.io/dataImportCron: rhel9-image-cron
$ oc get dv -n openshift-virtualization-os-images rhel9-87d2b5f15665 -o yaml | grep dataImportCron
cdi.kubevirt.io/dataImportCron: rhel9-image-cron

Version-Release number of selected component (if applicable):
4.12.1

How reproducible:
100%

Steps to Reproduce:
1.
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Actual results:
The old DVs and PVCs are never deleted by DIC garbage collection.

Expected results:
The old DVs and PVCs should be deleted by DIC garbage collection.

Additional info: