Fix flacky Metrics IT test

[brunobat]

This should be a more permanent solution.

[quarkus-bot]

/cc @ebullient (metrics), @jmartisk (metrics)

[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit aa8f982.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

You can consult the Develocity build scans.

[gsmet]

Let's merge and see how it goes in the next few days.

Thanks!