Further fix for acmeserver dns-01 config

roles/float-infra-acme/templates/config.yml.j2

@@ -11,7 +11,7 @@ http:
 dns:
   enabled: true
   tsig_key_name: "acme."
-  tsig_key_algo: "{{ acme_tsig_key.algo | lower }}"
+  tsig_key_algo: "{{ acme_tsig_key.algo | lower }}."
   tsig_key_secret: "{{ acme_tsig_key.private }}"
   nameservers:
 {% for h in services['dns'].hosts | sort %}