fix(errors): don't log out an error on timeout (spinnaker#3751)

Timeouts are pretty expected and are handled well in the UI, no need to throw an error into logs
This makes integration with, say, sentry, more sane as these timeouts won't show up as "issues"

orca-queue/src/main/kotlin/com/netflix/spinnaker/orca/q/handler/RunTaskHandler.kt

@@ -171,7 +171,10 @@ class RunTaskHandler(
         } else if (e is TimeoutException && stage.context["markSuccessfulOnTimeout"] == true) {
           queue.push(CompleteTask(message, SUCCEEDED))
         } else {
-          log.error("Error running ${message.taskType.simpleName} for ${message.executionType}[${message.executionId}]", e)
+          if (e !is TimeoutException) {
+            log.error("Error running ${message.taskType.simpleName} for ${message.executionType}[${message.executionId}]", e)
+          }
+
           val status = stage.failureStatus(default = TERMINAL)
           stage.context["exception"] = exceptionDetails
           repository.storeStage(stage)
@@ -304,7 +307,7 @@ class RunTaskHandler(
           msg.append("elapsedTime: ${formatTimeout(elapsedTime.toMillis())}, ")
           msg.append("timeoutValue: ${formatTimeout(actualTimeout.toMillis())}")
 
-          log.warn(msg.toString())
+          log.info(msg.toString())
           throw TimeoutException(msg.toString())
         }
       }