add missing kubebuilder tags

Signed-off-by: Steve Kriss <krisss@vmware.com>

pkg/apis/velero/v1/backup.go

@@ -277,6 +277,8 @@ type BackupStatus struct {
 	// Progress contains information about the backup's execution progress. Note
 	// that this information is best-effort only -- if Velero fails to update it
 	// during a backup for any reason, it may be inaccurate/stale.
+	// +optional
+	// +nullable
 	Progress *BackupProgress `json:"progress,omitempty"`
 }
 

pkg/generated/crds/manifests/velero.io_backups.yaml

@@ -359,6 +359,7 @@ spec:
               description: Progress contains information about the backup's execution
                 progress. Note that this information is best-effort only -- if Velero
                 fails to update it during a backup for any reason, it may be inaccurate/stale.
+              nullable: true
               properties:
                 itemsBackedUp:
                   description: ItemsBackedUp is the number of items that have actually