Fix the method used

We need to collect the iso from the ansible server.

Signed-off-by: leseb <seb@redhat.com>

roles/ceph-common/tasks/prerequisite_rh_storage_iso_install.yml

@@ -8,10 +8,9 @@
     - "{{ ceph_stable_rh_storage_repository_path }}"
 
 - name: fetch the red hat storage iso from the ansible server
-  fetch: >
+  copy: >
     src={{ ceph_stable_rh_storage_iso_path }}
     dest={{ ceph_stable_rh_storage_iso_path }}
-    flat=yes
 
 - name: mount red hat storage iso file
   mount: >