DataMover: VSB is stuck on SnapshotBackupDone

Description of problem:  VSB is stuck on SnapshotBackupDone.

Looks like there is a permissions issue. It reads on the volume-snapshot-mover pod's logs this error:

-mysql-484sf", "namespace": "mysql-persistent", "vsb": "mysql-persistent/vsb-velero-mysql-484sf"}
E0715 08:45:07.833396       1 reflector.go:138] sigs.k8s.io/controller-runtime/pkg/cache/internal/informers_map.go:250: Failed to watch *v1.StorageClass: unknown (get storageclasses.storage.k8s.io)
1.6578747114058044e+09    ERROR    controller.volumesnapshotbackup    unable to delete VSB resource    {"reconciler group": "datamover.oadp.openshift.io", "reconciler kind": "VolumeSnapshotBackup", "name": "vsb-velero-mysql-484sf", "namespace": "mysql-persistent", "vsb": "mysql-persistent/vsb-velero-mysql-484sf", "error": "volumesnapshots.snapshot.storage.k8s.io is forbidden: User \"system:serviceaccount:openshift-adp:openshift-adp-controller-manager\" cannot deletecollection resource \"volumesnapshots\" in API group \"snapshot.storage.k8s.io\" in the namespace \"openshift-adp\""}
github.com/konveyor/volume-snapshot-mover/controllers.ReconcileBatch
    /workspace/controllers/common.go:58
github.com/konveyor/volume-snapshot-mover/controllers.(*VolumeSnapshotBackupReconciler).Reconcile
    /workspace/controllers/volumesnapshotbackup_controller.go:117
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Reconcile
    /workspace/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:114
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler
    /workspace/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:311
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem
    /workspace/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:266
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2
    /workspace/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:227
 

The VSB's phase is stuck on `SnapshotBackupDone`.

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

OADP 1.1.0

Checked both on OCP 4.11 & OCP 4.10

How reproducible: 100%

Steps to Reproduce:
1. Install Volsync from latest stable channel

cat <<EOF | oc create -f -
apiVersion: operators.coreos.com/v1alpha1
kind: Subscription
metadata:
  generateName: oadp-
  name: oadp-operator
  namespace: openshift-operators
spec:
  channel: stable
  installPlanApproval: Automatic
  name: volsync-product
  source: prestage-operators
  sourceNamespace: openshift-marketplace
EOF

2. Create VSC:

apiVersion: snapshot.storage.k8s.io/v1
deletionPolicy: Retain
driver: ebs.csi.aws.com
kind: VolumeSnapshotClass
metadata:
  annotations:
    snapshot.storage.kubernetes.io/is-default-class: "true"
  labels:
    velero.io/csi-volumesnapshot-class: "true"
  name: example-snapclass

3. create restic-secret:

apiVersion: v1
data:
  AWS_ACCESS_KEY_ID: XXXXXXX
  AWS_SECRET_ACCESS_KEY: XXXXXXXXXXXXXXX
  RESTIC_PASSWORD: my-secure-restic-password
  RESTIC_REPOSITORY: s3:s3.amazonaws.com/oadpbucket119606
kind: Secret
metadata:
  name: restic-secret
  namespace: openshift-adp
type: Opaque

4. Set DPA CR:

apiVersion: oadp.openshift.io/v1alpha1
kind: DataProtectionApplication
metadata:
  creationTimestamp: "2022-07-11T12:49:59Z"
  generation: 1
  name: ts-dpa
  namespace: openshift-adp
spec:
  backupLocations:
  - velero:
      config:
        region: us-east-2
      credential:
        key: cloud
        name: cloud-credentials
      default: true
      objectStorage:
        bucket: oadpbucket119606
        prefix: velero-e2e-f395364a-0117-11ed-ad74-902e163f806c
      provider: aws
  configuration:
    restic:
      enable: true
      podConfig:
        resourceAllocations: {}
    velero:
      defaultPlugins:
      - openshift
      - aws
      - kubevirt
      - csi
  features:
    enableDataMover: true
  podDnsConfig: {}
  snapshotLocations: []

5. Create backup. After VSB's phase becomes SnapshotBackupDone, read the volume-snapshot-mover pod's logs.

Actual results:

Expected results:

Additional info: