[Flaky Test] Fix unit test MasterServiceTests.testClusterStateUpdateLoggingWithDebugEnabled 

### Describe the bug

Reported in https://github.com/opensearch-project/OpenSearch/pull/15053#issuecomment-2264145434
https://github.com/opensearch-project/OpenSearch/pull/14464#issuecomment-2263761642

### Related component

Cluster Manager

### To Reproduce

Run unit test locally for 5000 iterations

### Expected behavior

N/A

### Additional Details

_No response_