validate: check for reef repository

stable-8.0 is reef so this must check the right value for ceph_stable_release

Signed-off-by: Guillaume Abrioux <gabrioux@ibm.com>

roles/ceph-validate/tasks/check_repository.yml

@@ -12,8 +12,8 @@
 
 - name: Validate ceph_repository_community
   ansible.builtin.fail:
-    msg: "ceph_stable_release must be 'squid'"
+    msg: "ceph_stable_release must be 'reef'"
   when:
     - ceph_origin == 'repository'
     - ceph_repository == 'community'
-    - ceph_stable_release not in ['squid']
+    - ceph_stable_release not in ['reef']