[improve](common) Add synchronized to avoid concurrent modification #42384 (#42453)

cherry pick from #42384

Author: w41ter

fe/fe-core/src/main/java/org/apache/doris/common/MarkedCountDownLatch.java

@@ -35,7 +35,7 @@ public MarkedCountDownLatch(int count) {
         marks = HashMultimap.create();
     }
 
-    public void addMark(K key, V value) {
+    public synchronized void addMark(K key, V value) {
         marks.put(key, value);
     }
 
@@ -51,7 +51,7 @@ public synchronized List<Entry<K, V>> getLeftMarks() {
         return Lists.newArrayList(marks.entries());
     }
 
-    public Status getStatus() {
+    public synchronized Status getStatus() {
         return st;
     }