[#2439] fix(test): remove shuffleServer from coordinators when it stops (#2440)

### What changes were proposed in this pull request?
Remove shuffleServer from coordinators when it stops.

### Why are the changes needed?
Fix: #2439

### Does this PR introduce any user-facing change?
No.

### How was this patch tested?
Repeat it for 100 times.

Author: xianjingfeng

integration-test/common/src/test/java/org/apache/uniffle/test/ShuffleWithRssClientTest.java

@@ -475,6 +475,10 @@ public void testRetryAssgin() throws Throwable {
                                 if (ss.getId().equals(entry.getKey().getId())) {
                                   try {
                                     ss.stopServer();
+                                    coordinators.forEach(
+                                        c ->
+                                            c.getClusterManager()
+                                                .addExcludedNodes(Lists.newArrayList(ss.getId())));
                                   } catch (Exception e) {
                                     e.printStackTrace();
                                   }