Flaky test ShouldReturnRequestCountAndSumResponseSize

Problem

The unit test ShouldReturnRequestCountAndSumResponseSize sometimes fails when run on multi-CPU runners.

• Example job: https://gitlab.com/gitlab-org/security-products/analyzers/api-fuzzing-src/-/jobs/2810807453

It's possible the test itself is broken. It doesn't appear to take into consideration changes to the path of the URL.