multus: add deletecollection capability for validation tool

Without deletecollection capability the image pullers won't be deleted, causing multus validation to fail.
    Added deletecollection verbs to the daemonsets resource in role rook-ceph-system
    This is fix for Issue: https://github.com/rook/rook/issues/12435

    Signed-off-by: Sudharsan Omprakash <sudharsan.omprakash@yahoo.com>

deploy/charts/rook-ceph/templates/role.yaml

@@ -38,6 +38,7 @@ rules:
   - create
   - update
   - delete
+  - deletecollection
 - apiGroups:
   - batch
   resources:

deploy/examples/common.yaml

@@ -896,6 +896,7 @@ rules:
       - create
       - update
       - delete
+      - deletecollection
   - apiGroups:
       - batch
     resources: