Get not allowed error, Unable to create topic list watcher: Pattern longer than maximum: 50

### Search before asking

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

### Motivation

I have topics that are very long: about 100 characters. The regex matcher cannot handle this apparently.
```
var patternStr = topic + ".*"
val topicPattern: Pattern = Pattern.compile(patternStr)
pulsarConsumer = consumerBuilder.topicsPattern(topicPattern).subscribe()
```
=> [pulsar-client-io-1-3] ERROR org.apache.pulsar.client.impl.ClientCnx - Get not allowed error, Unable to create topic list watcher: Pattern longer than maximum: 50

If I try to shorten the topic pattern and only use the last 50 or so characters, this is also not allowed:
```
var patternStr = topic + ".*"
if (topic.length > 46) {
patternStr = ".*" + topic.slice(topic.length - 46..topic.length - 1) + ".*"
logger.info("Using shortened topic regex matcher: $patternStr")
}
val topicPattern: Pattern = Pattern.compile(patternStr)
pulsarConsumer = consumerBuilder.topicsPattern(topicPattern).subscribe()
```

=>
````
Exception in thread "main" org.apache.pulsar.client.api.PulsarClientException: java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException: Invalid short topic name '.*place513/consumption-metamagic542153-coverage-v0.*', it should be in the format of // or
at org.apache.pulsar.client.api.PulsarClientException.unwrap(PulsarClientException.java:1111)
at org.apache.pulsar.client.impl.ConsumerBuilderImpl.subscribe(ConsumerBuilderImpl.java:103)
````

### Solution

_No response_

### Alternatives

_No response_

### Anything else?

_No response_

### Are you willing to submit a PR?

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

Reproduce the long-topic pattern cases from the issue and trace subscription handling from ConsumerBuilderImpl.java. Compare the server's 50-character pattern rejection with the client error for a shortened pattern; done requires a clearly defined and tested way to handle these long topic patterns.

Written by the indexing model from the issue text.