[Bug] The websocket server has already been created with port = 8080. Please set the option cdc.port = 8080.

### Search before asking

- [X] I searched in the [issues](https://github.com/apache/iotdb/issues) and found nothing similar.

### Version

linux
lotdb: 1.3.2

### Describe the bug and provide the minimal reproduce step

1、使用flink cdc sql
CREATE TABLE iotable_table_3 (
`Time_` bigint,
`root.zhang.table3.id` int,
`root.zhang.table3.name` string,
`root.zhang.table3.address` STRING
) WITH (
'connector' = 'IoTDB',
'nodeUrls'='ddp1:6667',
'mode'='cdc',
'cdc.task.name'='test1',
'cdc.pattern'='root.zhang.table3'
)
2、直接select * from iotable_table_3，此时没有数据。查看日志后发现，WebSocketConnectorServer启动失败，端口默认8080，被占用
3、切换端口：
CREATE TABLE iotable_table_2 (
`Time_` bigint,
`root.zhang.table3.id` int,
`root.zhang.table3.name` string,
`root.zhang.table3.address` STRING
) WITH (
'connector' = 'IoTDB',
'nodeUrls'='ddp1:6667',
'mode'='cdc',
'cdc.task.name'='test2',
'cdc.pattern'='root.zhang.table3',
'cdc.port'='18089'
)
但是发现flink 任务日志报错
org.apache.iotdb.rpc.StatementExecutionException: 1107: The websocket server has already been created with port = 8080. Please set the option cdc.port = 8080.
at org.apache.iotdb.rpc.RpcUtils.verifySuccess(RpcUtils.java:94)
at org.apache.iotdb.session.SessionConnection.executeNonQueryStatement(SessionConnection.java:474)
at org.apache.iotdb.session.Session.executeNonQueryStatement(Session.java:914)
at org.apache.iotdb.flink.sql.function.IoTDBCDCSourceFunction.open(IoTDBCDCSourceFunction.java:134)
at org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:34)
at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:101)
at org.apache.flink.streaming.runtime.tasks.RegularOperatorChain.initializeStateAndOpenOperators(RegularOperatorChain.java:107)
at org.apache.flink.streaming.runtime.tasks.StreamTask.restoreGates(StreamTask.java:734)
at org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$SynchronizedStreamTaskActionExecutor.call(StreamTaskActionExecutor.java:100)
at org.apache.flink.streaming.runtime.tasks.StreamTask.restoreInternal(StreamTask.java:709)
at org.apache.flink.streaming.runtime.tasks.StreamTask.restore(StreamTask.java:675)
at org.apache.flink.runtime.taskmanager.Task.runWithSystemExitMonitoring(Task.java:952)
at org.apache.flink.runtime.taskmanager.Task.restoreAndInvoke(Task.java:921)
at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:745)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:562)
at java.lang.Thread.run(Thread.java:750)

### What did you expect to see?

能够切换端口，并且通过flink-sql查出来iotdb cdc的数据

### What did you see instead?

这个方法有问题。

它会被这样调用：

new WebSocketConnectorServer成功后，直接启动了线程。但是线程内部运行报错，这个实例还在private static final AtomicReference instance，因此每次获取都是以前的旧实例。我切换端口也不会管用

### Anything else?

_No response_

### Are you willing to submit a PR?

- [ ] I'm willing to submit a PR!

Commencez par org.apache.iotdb.flink.sql.function.IoTDBCDCSourceFunction.open, puis examinez la création de WebSocketConnectorServer et le comportement de l’instance statique décrits dans le rapport. Reproduisez la configuration Flink SQL CDC avec les ports 8080 et 18089, et vérifiez que la modification de cdc.port démarre le serveur sur le port demandé et permet d’interroger les données CDC.

Rédigé par le modèle d'indexation à partir du texte de l'issue.