FIX: Information leak vulnerability

https://discuss.elastic.co/t/apache-log4j2-remote-code-execution-rce-vulnerability-cve-2021-44228-esa-2021-31/291476

Author: fnkr

defaults/main.yaml

@@ -57,6 +57,7 @@ elasticsearch:
       {%- else -%}
         =/var/db/elasticsearch/jna
       {%- endif -%}
+    "-Dlog4j2.formatMsgNoLookups": "=true"
   repository:
     apt:
       key_url: https://artifacts.elastic.co/GPG-KEY-elasticsearch