Install fence-agents-azure-arm also on 12-SP5

Bug https://bugzilla.suse.com/show_bug.cgi?id=1226671 was also reported
in 12sp5 VMs in Azure, so a similar fix as the one applied for
15-SP4/5/6 has been implemented. As such, we also need to install
fence-agents-azure-arm in 12sp5.

ansible/playbooks/tasks/azure-cluster-bootstrap.yaml

@@ -25,7 +25,8 @@
   retries: 3
   delay: 60
   when:
-    - ansible_distribution_version is version('15.4', '>=')
+    - ansible_distribution_version is version('15.4', '>=') or
+      ansible_distribution_version is version('12.5', '==')
 
 - name: Get the status of all extensions
   ansible.builtin.command: