Decrease log level from info to fine for subscriber metrics

Change-Id: I3ea214b9f169407f537a45b217eac1bc18a38cc1
diff --git a/src/main/java/com/googlesource/gerrit/plugins/multisite/consumer/SubscriberMetrics.java b/src/main/java/com/googlesource/gerrit/plugins/multisite/consumer/SubscriberMetrics.java
index fc29e8f..34f7717 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/multisite/consumer/SubscriberMetrics.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/multisite/consumer/SubscriberMetrics.java
@@ -102,7 +102,7 @@
             projectName, localVersion.isPresent(), remoteVersion.isPresent());
       }
     } else {
-      logger.atInfo().log("Not a ref-replicated-event event [%s], skipping", event.type);
+      logger.atFine().log("Not a ref-replicated-event event [%s], skipping", event.type);
     }
   }