flag PersistentVolumeLastPhaseTransitionTime feature as implemented

Author: RomanBednar

keps/sig-storage/3762-persistent-volume-last-phase-transition-time/kep.yaml

@@ -4,9 +4,9 @@ authors:
   - "@RomanBednar"
 owning-sig: sig-storage
 participating-sigs:
-status: implementable
+status: implemented
 creation-date: 2023-01-20
-last-updated: 2024-05-20
+last-updated: 2024-09-20
 reviewers:
   - "@jsafrane"
 approvers: