temp fix: add alertmanager passwd to persist_openhpc_secrets template

Author: bertiethorpe

ansible/roles/persist_openhpc_secrets/templates/openhpc_secrets.fact

@@ -6,4 +6,5 @@
   "vault_mysql_root_password": "{{ lookup('password', '/dev/null') }}",
   "vault_mysql_slurm_password": "{{ lookup('password', '/dev/null') }}",
   "vault_openhpc_mungekey": "{{ lookup('pipe', 'dd if=/dev/urandom bs=1 count=1024 2>/dev/null | base64') | regex_replace('\s+', '') }}"
+  "vault_alertmanager_admin_password": "{{ lookup('password', '/dev/null') }}"
 }