Fix the wrong time unit used for elapsed time

Author: weiatwork

core/trino-main/src/main/java/io/trino/sql/planner/iterative/IterativeOptimizer.java

@@ -373,7 +373,7 @@ public void checkTimeoutNotExhausted()
                             .map(ruleStats -> format(
                                     "%s: %s ms, %s invocations, %s applications",
                                     ruleStats.rule(),
-                                    ruleStats.totalTime(),
+                                    NANOSECONDS.toMillis(ruleStats.totalTime()),
                                     ruleStats.invocations(),
                                     ruleStats.applied()))
                             .collect(joining(",\n\t\t", "{\n\t\t", " }"));