### What changes were proposed in this pull request?
Celeborn Flink client validates whether `execution.batch-shuffle-mode` is `ALL_EXCHANGES_BLOCKING`.
### Why are the changes needed?
The config option `execution.batch-shuffle-mode` of Flink is `ALL_EXCHANGES_BLOCKING` by default. Celeborn Flink client should validate whether `execution.batch-shuffle-mode` is `ALL_EXCHANGES_BLOCKING`. If `execution.batch-shuffle-mode` is set as `ALL_EXCHANGES_PIPELINED`, there is `NullPointerException` for `ReducePartitionCommitHandler#handleGetReducerFileGroup`, which exception is as follows:
```
023-11-16 14:40:55,984 ERROR org.apache.celeborn.common.rpc.netty.Inbox - Ignoring error
java.lang.NullPointerException: Cannot invoke "java.util.Set.add(Object)" because the return value of "java.util.concurrent.ConcurrentHashMap.get(Object)" is null
at org.apache.celeborn.client.commit.ReducePartitionCommitHandler.handleGetReducerFileGroup(ReducePartitionCommitHandler.scala:307)
at org.apache.celeborn.client.CommitManager.handleGetReducerFileGroup(CommitManager.scala:266)
at org.apache.celeborn.client.LifecycleManager.org$apache$celeborn$client$LifecycleManager$$handleGetReducerFileGroup(LifecycleManager.scala:559)
at org.apache.celeborn.client.LifecycleManager$$anonfun$receiveAndReply$1.applyOrElse(LifecycleManager.scala:297)
at org.apache.celeborn.common.rpc.netty.Inbox.$anonfun$process$1(Inbox.scala:115)
at org.apache.celeborn.common.rpc.netty.Inbox.safelyCall(Inbox.scala:222)
at org.apache.celeborn.common.rpc.netty.Inbox.process(Inbox.scala:110)
at org.apache.celeborn.common.rpc.netty.Dispatcher$MessageLoop.run(Dispatcher.scala:227)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:833)
```
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
`RemoteShuffleServiceFactorySuitJ#testInvalidShuffleServiceConfig`.
Closes#2106 from SteNicholas/CELEBORN-1134.
Authored-by: SteNicholas <programgeek@163.com>
Signed-off-by: mingji <fengmingxiao.fmx@alibaba-inc.com>
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