SshServer shutdown on Windows may report exceptions about already shut down ExecutorService

### Version

2.10.0

### Bug description

From the [mailing list](https://www.mail-archive.com/users@mina.apache.org/msg07002.html):

Attached code causes circa 50 exceptions:
```
public static void main(String[] args) throws Exception {

for (int i = 0; i < 100; i++) {
SshServer sshd = SshServer.setUpDefaultServer();
SimpleGeneratorHostKeyProvider hostKeyProvider = new SimpleGeneratorHostKeyProvider(
Paths.get(".", "cert"));
hostKeyProvider.setAlgorithm(KeyUtils.RSA_ALGORITHM);

sshd.setKeyPairProvider(hostKeyProvider);
sshd.start();
sshd.stop(false);
}
}
```

### Actual behavior

Lots of exceptions about an already shut down ExecutorService are logged.

This occurs on Windows only; it's not reproducible on Linux.

### Expected behavior

No exceptions are logged; the server shuts down cleanly.

### Relevant log output

```Shell
Exception in thread "Thread-3" Exception in thread "Thread-2"
java.lang.IllegalStateException: Executor has been shut down
at
org.apache.sshd.common.util.ValidateUtils.createFormattedException(ValidateUtils.java:213)
at
org.apache.sshd.common.util.ValidateUtils.throwIllegalStateException(ValidateUtils.java:207)
at
org.apache.sshd.common.util.ValidateUtils.checkState(ValidateUtils.java:184)
at
org.apache.sshd.common.util.threads.NoCloseExecutor.execute(NoCloseExecutor.java:100)
at
java.base/sun.nio.ch.AsynchronousChannelGroupImpl.executeOnPooledThread(AsynchronousChannelGroupImpl.java:190)
at java.base/sun.nio.ch.Invoker.invokeIndirectly(Invoker.java:215)
at java.base/sun.nio.ch.Invoker.invokeIndirectly(Invoker.java:316)
at
java.base/sun.nio.ch.WindowsAsynchronousServerSocketChannelImpl$AcceptTask.failed(WindowsAsynchronousServerSocketChannelImpl.java:288)
at java.base/sun.nio.ch.Iocp$EventHandlerTask.run(Iocp.java:389)
at java.base/java.lang.Thread.run(Thread.java:1589)
```

### Other information

OS: Windows

Originally reported using temurin 19.0.2.7 and Apache MINA sshd 2.10.0, but it also occurs with other JVMs/JDKs.

Reproduce the shutdown loop on Windows with the example in the issue, then inspect NoCloseExecutor.java and the JDK asynchronous server-channel shutdown path shown in the stack trace. Trace the shutdown ordering and verify that repeated SshServer start/stop cycles complete without logging ExecutorService exceptions.

Written by the indexing model from the issue text.