[Bug] brokerPermission cannot guarantee that messages will not flow in

[GenerousMan]

Before Creating the Bug Report

• I found a bug, not just asking a question, which should be created in GitHub Discussions.

• I have searched the GitHub Issues and GitHub Discussions of this repository and believe that this is not a duplicate.

• I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ.

Runtime platform environment

CentOS

RocketMQ version

5.1.0

JDK Version

No response

Describe the Bug

brokerPermission cannot guarantee that messages will not flow in.
If the client has a cache and has not updated it, it will still send a message to the write-forbidden broker.

Steps to Reproduce

#6509 ‘s remaining problem.

What Did You Expect to See?

No message flows in.

What Did You See Instead?

Although the broker is isolated, but clients can still send messages into it.

Additional Context

No response