[Conf] Improve upstreams setup for fuzzy storage by default

conf/modules.d/fuzzy_check.conf

@@ -19,7 +19,7 @@ fuzzy_check {
     retransmits = 1;
     rule "rspamd.com" {
         algorithm = "mumhash";
-        servers = "fuzzy.rspamd.com:11335";
+        servers = "round-robin:fuzzy1.rspamd.com:11335,fuzzy2.rspamd.com:11335";
         encryption_key = "icy63itbhhni8bq15ntp5n5symuixf73s1kpjh6skaq4e7nx5fiy";
         symbol = "FUZZY_UNKNOWN";
         mime_types = ["*"];