`current_application_settings` used by `influx_metrics_enabled`
executed a markdown parsing code that was measured using `Gitlab::Metrics.measure`

But since the Gitlab::Metrics::InfluxDb was not yet build so Gitlab::Metrics
did not yet have `measure` method. Causing the NoMethodError.

However If run was successful at least once then result was cached in a file and this code never executed again.
Which caused this issue to only show up in CI preparation step.