typo: updating type check on rc

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1827271

Signed-off-by: ianwatsonrh <ianwatson@redhat.com>
(cherry picked from commit ccf6a7f1)

roles/ceph-validate/tasks/check_system.yml

@@ -43,7 +43,7 @@
     - ansible_distribution == 'RedHat'
     - ceph_repository == 'rhcs'
     - ceph_repository_type == 'cdn'
-    - subscription.rc != '0'
+    - subscription.rc != 0
 
 - name: fail on unsupported distribution for ubuntu cloud archive
   fail: