[Improvement] CreateTableFailureEvent listener exception masks original createTable failure

### What would you like to be improved?

In TableEventDispatcher#createTable, when dispatcher.createTable(...) throws, the code enters the catch block and dispatches CreateTableFailureEvent. If eventBus.dispatchEvent(...) also throws, that new exception replaces the original create-table exception. This can hide the real root cause from callers and make production failures much harder to diagnose.

Relevant path: TableEventDispatcher.java (line 141)

### How should we improve?

Protect failure-event dispatch so it cannot mask the original exception. For example, wrap eventBus.dispatchEvent(new CreateTableFailureEvent(...)) in its own try/catch, preserve the original exception, and then rethrow the original failure.

Here's a unit test to help:
```

@Test
void testCreateTableFailureEventShouldNotMaskOriginalExceptionWhenListenerThrows() {
NameIdentifier identifier = NameIdentifier.of("metalake", "catalog", table.name());
GravitinoRuntimeException originalException =
new GravitinoRuntimeException("Original create table failure");
GravitinoRuntimeException listenerException =
new GravitinoRuntimeException("Failure listener exception");
TableDispatcher tableExceptionDispatcher = mock(TableDispatcher.class);
when(tableExceptionDispatcher.createTable(
any(NameIdentifier.class),
any(Column[].class),
any(String.class),
any(Map.class),
any(Transform[].class),
any(Distribution.class),
any(SortOrder[].class),
any(Index[].class)))
.thenThrow(originalException);

EventBus eventBus =
new EventBus(
Arrays.asList(
new EventListenerPlugin() {
@Override
public void init(Map properties) {}

@Override
public void start() {}

@Override
public void stop() {}

@Override
public void onPostEvent(Event event) {
if (event instanceof CreateTableFailureEvent) {
throw listenerException;
}
}
}));
TableEventDispatcher tableEventDispatcher =
new TableEventDispatcher(eventBus, tableExceptionDispatcher);

GravitinoRuntimeException thrownException =
Assertions.assertThrowsExactly(
GravitinoRuntimeException.class,
() ->
tableEventDispatcher.createTable(
identifier,
table.columns(),
table.comment(),
table.properties(),
table.partitioning(),
table.distribution(),
table.sortOrder(),
table.index()));

Assertions.assertSame(originalException, thrownException);
}
```