CI Stability: OpenTelemetryMetricsTests.Metrics_are_collected_and_match_expected_names_with_positive_counts

[chynesNR]

OpenTelemetryMetricsTests.Metrics_are_collected_and_match_expected_names_with_positive_counts is an integration test that fails regularly. Can we rework it to be more reliable?

e.g. https://github.com/newrelic/newrelic-dotnet-agent/actions/runs/22569527665/job/65375330747

[Newrelic-Boomi]

https://new-relic.atlassian.net/browse/NR-533803