Re-enable OS testing for micrometer and otel QSs

The Micrometer and OpenTelemetry quickstarts have their OpenShift testing disable due to the requirement of an extra deployment (OpenTelemetry Collector) in order to test. Configuring the collector has been implemented/fixed for manual testing, so we now need to replicate that work in the context of automated testing (i.e., runPostHelmInstallCommands).