Possibly misleading comment or bug

### Version

both master and 5.x.x

### Context

Hi dear Vertx team.

Inside **io.vertx.pgclient.impl.codec.ExtendedQueryCommandCodec** there is comment that either obsolete or at worst case there is missing code. Here it is

```
@Override
void encode(PgEncoder encoder) {
...
if (cmd.paramsList().isEmpty()) {
// We set suspended to false as we won't get a command complete command back from Postgres
this.result = false;
this.decoder.fireCommandResponse(CommandResponse.failure("Can not execute batch query with 0 sets of batch parameters."));
return;
}
```

can you please verify if this is outdated comment or really missed logic of suspending.

### Steps to reproduce

_No response_

### Do you have a reproducer?

_No response_