Segment fault in CI test: TestMultiServerIntrospection

### Search before asking

- [X] I had searched in the [issues](https://github.com/apache/incubator-kvrocks/issues) and found no similar issues.

### Version

unstable

### Minimal reproduce step

https://github.com/apache/incubator-kvrocks/actions/runs/4030144063/jobs/6928653030

### What did you expect to see?

passed

### What did you see instead?

CI failure

### Anything Else?

_No response_

### Are you willing to submit a PR?

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

Start with the linked CI job for TestMultiServerIntrospection and inspect its failure output to identify where the segmentation fault occurs. Then run that test locally if the repository provides the needed test command and compare the result with CI. Done means the test passes reliably in CI without the segmentation fault.

Written by the indexing model from the issue text.