bugfix job metrics set concurrent modification exception (apache#723)

Author: tomsun28

common/src/main/java/com/usthe/common/entity/job/Job.java

@@ -167,7 +167,7 @@ public synchronized void constructPriorMetrics() {
  // 构造指标组任务执行顺序链表
  priorMetrics = new LinkedList<>();
  map.values().forEach(metric -> {
- Set<Metrics> metricsSet = new HashSet<>(metric);
+ Set<Metrics> metricsSet = Collections.synchronizedSet(new HashSet<>(metric));
  priorMetrics.add(metricsSet);
  });
  priorMetrics.sort(Comparator.comparing(e -> {