Remove extra `ms` from log message (#42068)

This log message logs a `TimeValue` which includes units, but also logs an
extra `ms`. This commit removes the extra `ms`.

server/src/main/java/org/elasticsearch/cluster/coordination/JoinHelper.java

@@ -243,7 +243,7 @@ public class JoinHelper {
         }
 
         void logWarnWithTimestamp() {
-            logger.info(() -> new ParameterizedMessage("last failed join attempt was {} ms ago, failed to join {} with {}",
+            logger.info(() -> new ParameterizedMessage("last failed join attempt was {} ago, failed to join {} with {}",
                             TimeValue.timeValueMillis(TimeValue.nsecToMSec(System.nanoTime() - timestamp)),
                             destination,
                             joinRequest),