Unit tests failing in the pipeline due to data race

[salonichf5]

Describe the bug
Unit tests are failing in the pipeline due to race conditions

To Reproduce

• https://github.com/nginx/nginx-gateway-fabric/actions/runs/17617397159/job/50054227256?pr=3872

Expected behavior
All unit tests pass without having race detection issues.

Your environment

• Version of the NGINX Gateway Fabric - edge

Additional context
Add any other context about the problem here. Any log files you want to share.