Prometheus Histogram support

[pugazhenthi-elangovan-E3338]

As we know, netflix-spectator instrumentation is being used. For prometheus format, spectator metrics are converted into micrometer standards with the use of [spectator-reg-micrometer](https://github.com/Netflix/spectator/tree/main/spectator-reg-micrometer) jar. Histogram instrumentation bucketing techniques in spectator are way different from prometheus. Measurement type (Counter) of the spectator type itself differs than Timer type (Histogram) in prometheus.

Any techniques or translations that helps us to use histogram_quantile function of prometheus for the PercentileTimer metrics in conductor ?