DOC-514: disable anon user tracking (#268)

https://hazelcast.atlassian.net/browse/DOC-514

Author: fantkolja

src/partials/head-scripts.hbs

@@ -51,6 +51,7 @@
     data-search-mode-enabled="true"
     data-search-display-num-results="10"
     data-search-source-group-order='["docs.hazelcast.com", "Java API Docs", "C# API Docs", "Go Client Docs"]'
+    data-user-analytics-cookie-enabled="false"
   ></script>
   <!-- End Kapa snippet -->
 {{/with}}