[SPARK-52685][SQL][TESTS] Add a clue for flaky test: 'SPARK-47148: AQE should avoid to submit shuffle job on cancellation'

### What changes were proposed in this pull request?

This PR adds a clue for flaky test: 'SPARK-47148: AQE should avoid to submit shuffle job on cancellation'

### Why are the changes needed?

The test fails frequently without clue provided

```
SPARK-47148: AQE should avoid to submit shuffle job on cancellation *** FAILED *** (6 seconds, 90 milliseconds)
[info]   scala.`package`.Seq.apply[org.apache.spark.SparkException](error).++[Throwable](scala.Option.apply[Throwable](error.getCause())).++[Throwable](scala.Predef.wrapRefArray[Throwable](error.getSuppressed())).exists(((e: Throwable) => e.getMessage().!=(null).&&(e.getMessage().contains("coalesce test error")))) was false (AdaptiveQueryExecSuite.scala:938)
[info]   org.scalatest.exceptions.TestFailedException:
```

### Does this PR introduce _any_ user-facing change?
no

### How was this patch tested?
passing CI, and an intentional local failure

```
[info] - SPARK-47148: AQE should avoid to submit shuffle job on cancellation *** FAILED *** (7 seconds, 7 milliseconds)
[info]   errMsgList.exists(((x$25: String) => x$25.contains("AAAcoalesce test error"))) was fals
[info]   The error message should contain 'coalesce test error', but got:
[info]   ======
[info]   Job aborted due to stage failure: Task 0 in stage 0.0 failed 1 times, most recent failure: Lost task 0.0 in stage 0.0 (TID 0) (10.242.151.176 executor driver): java.lang.RuntimeException: coalesce test error
[info]   	at org.apache.spark.sql.execution.adaptive.TestProblematicCoalesceStrategy$TestProblematicCoalesceExec.$anonfun$doExecute$1(AdaptiveQueryExecSuite.scala:3227)
[info]   	at org.apache.spark.rdd.RDD.$anonfun$mapPartitions$2(RDD.scala:866)
[info]   	at org.apache.spark.rdd.RDD.$anonfun$mapPartitions$2$adapted(RDD.scala:866)
[info]   	at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52)
[info]   	at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:374)
[info]   	at org.apache.spark.rdd.RDD.iterator(RDD.scala:338)
[info]   	at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52)
[info]   	at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:374)
[info]   	at org.apache.spark.rdd.RDD.iterator(RDD.scala:338)
[info]   	at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:107)
[info]   	at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:54)
[info]   	at org.apache.spark.TaskContext.runTaskWithListeners(TaskContext.scala:171)
[info]   	at org.apache.spark.scheduler.Task.run(Task.scala:147)
[info]   	at org.apache.spark.executor.Executor$TaskRunner.$anonfun$run$5(Executor.scala:647)
[info]   	at org.apache.spark.util.SparkErrorUtils.tryWithSafeFinally(SparkErrorUtils.scala:80)
[info]   	at org.apache.spark.util.SparkErrorUtils.tryWithSafeFinally$(SparkErrorUtils.scala:77)
[info]   	at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:100)
[info]   	at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:650)
[info]   	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
[info]   	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
[info]   	at java.base/java.lang.Thread.run(Thread.java:840)
[info]
[info]   Driver stacktrace:
[info]   coalesce test error
[info]   ====== (AdaptiveQueryExecSuite.scala:941)
````

### Was this patch authored or co-authored using generative AI tooling?
no

Closes #51375 from yaooqinn/SPARK-52685.

Authored-by: Kent Yao <yao@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>

Author: yaooqinn

sql/core/src/test/scala/org/apache/spark/sql/execution/adaptive/AdaptiveQueryExecSuite.scala

@@ -930,14 +930,19 @@ class AdaptiveQueryExecSuite
           SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true",
           SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "-1") {
           val joined = createJoinedDF()
-          joined.explain(true)
 
           val error = intercept[SparkException] {
             joined.collect()
           }
-          assert((Seq(error) ++ Option(error.getCause) ++ error.getSuppressed()).exists(
-            e => e.getMessage() != null && e.getMessage().contains("coalesce test error")))
-
+          val errMsgList = (error :: error.getCause :: error.getSuppressed.toList)
+            .filter(e => e != null && e.getMessage != null)
+            .map(_.getMessage)
+
+          assert(errMsgList.exists(_.contains("coalesce test error")),
+            s"""
+               |The error message should contain 'coalesce test error', but got:
+               |${errMsgList.mkString("======\n", "\n", "\n======")}
+               |""".stripMargin)
           val adaptivePlan = joined.queryExecution.executedPlan.asInstanceOf[AdaptiveSparkPlanExec]
 
           // All QueryStages should be based on ShuffleQueryStageExec