[Bug][broker] Producer still publishes messages to Broker after Topic was unloaded.

### Search before reporting

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

### Read release policy

- [x] I understand that [unsupported versions](https://pulsar.apache.org/contribute/release-policy/#supported-versions) don't get bug fixes. I will attempt to reproduce the issue on a supported version of Pulsar client and Pulsar broker.

### User environment

Broker version: 4.1.0

### Issue Description

After unloading a bundle with many non-persistent topics from Broker, we found some producers in `ProducerAccessMode.Shared` mode were still publishing messages to the broker. Even thought the topic was not loaded by the broker any more.

### Error messages

```text

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### Reproducing the issue

Run [AbstractTopicTest#testOverwriteOldProducerAfterTopicClosed](https://github.com/apache/pulsar/blob/8c6eb0c5d1541d49451cecfa2af43cef71def416/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/AbstractTopicTest.java#L120)

### Additional information

_No response_

### Are you willing to submit a PR?

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

Start by running AbstractTopicTest#testOverwriteOldProducerAfterTopicClosed in pulsar-broker/src/test/java/org/apache/pulsar/broker/service/AbstractTopicTest.java. Reproduce the unload scenario and verify that producers in Shared mode no longer publish after the topic is unloaded; the test should pass with that behavior.

Written by the indexing model from the issue text.