fix: collected metric named router_process_jobs_count collides with previously collected histogram named router_process_jobs (#5966)

# Description

A histogram's counter uses the _count suffix, thus renaming the
histogram's name to avoid collision with the dedicated counter

## Security

- [x] The code changed/added as part of this pull request won't create
any security issues with how the software is being used.

Author: atzoum

router/handle_lifecycle.go

@@ -130,9 +130,9 @@ func (rt *Handle) Setup(
 	rt.routerTransformInputCountStat = stats.Default.NewTaggedStat("router_transform_num_input_jobs", stats.CountType, statTags)
 	rt.routerTransformOutputCountStat = stats.Default.NewTaggedStat("router_transform_num_output_jobs", stats.CountType, statTags)
 	rt.batchInputOutputDiffCountStat = stats.Default.NewTaggedStat("router_batch_input_output_diff_jobs", stats.CountType, statTags)
-	rt.processJobsHistogramStat = stats.Default.NewTaggedStat("router_process_jobs", stats.HistogramType, statTags)
+	rt.processJobsHistogramStat = stats.Default.NewTaggedStat("router_process_jobs_hist", stats.HistogramType, statTags)
 	rt.processJobsCountStat = stats.Default.NewTaggedStat("router_process_jobs_count", stats.CountType, statTags)
-	rt.processRequestsHistogramStat = stats.Default.NewTaggedStat("router_process_requests", stats.HistogramType, statTags)
+	rt.processRequestsHistogramStat = stats.Default.NewTaggedStat("router_process_requests_hist", stats.HistogramType, statTags)
 	rt.processRequestsCountStat = stats.Default.NewTaggedStat("router_process_requests_count", stats.CountType, statTags)
 	rt.routerResponseTransformStat = stats.Default.NewTaggedStat("response_transform_latency", stats.TimerType, statTags)
 	rt.throttlingErrorStat = stats.Default.NewTaggedStat("router_throttling_error", stats.CountType, statTags)