[Bug] DefaultLitePullConsumer PullThreadNums Parameter not effective.

[luozongle01]

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

MacOS 11.7.10

RocketMQ version

develop

JDK Version

Oracle JDK 8

Describe the Bug

I found that the setPullThreadNums parameter does not work when using the DefaultLitePullConsumer. No matter how many are set, there will always be 20 threads.

Steps to Reproduce

What Did You Expect to See?

setPullThreadNums Should take effect.

What Did You See Instead?

There are 20 threads working.

Additional Context

No response