Log Message:
prometheus: update to 2.51.1.

## 2.51.1 / 2024-03-27

Bugfix release.

* [BUGFIX] PromQL: Re-instate validation of label_join destination label #13803
* [BUGFIX] Scraping (experimental native histograms): Fix handling of the min \ 
bucket factor on sync of targets #13846
* [BUGFIX] PromQL: Some queries could return the same series twice (library use \ 
only) #13845

## 2.51.0 / 2024-03-18

This version is built with Go 1.22.1.

There is a new optional build tag "dedupelabels", which should reduce \ 
memory consumption (#12304).
It is off by default; there will be an optional alternative image to try it out.

* [CHANGE] Scraping: Do experimental timestamp alignment even if tolerance is \ 
bigger than 1% of scrape interval #13624, #13737
* [FEATURE] Alerting: Relabel rules for AlertManagerConfig; allows routing \ 
alerts to different alertmanagers #12551, #13735
* [FEATURE] API: add limit param to series, label-names and label-values APIs #13396
* [FEATURE] UI (experimental native histograms): Add native histogram chart to \ 
Table view #13658
* [FEATURE] Promtool: Add a "tsdb dump-openmetrics" to dump in \ 
OpenMetrics format. #13194
* [FEATURE] PromQL (experimental native histograms): Add histogram_avg function \ 
#13467
* [ENHANCEMENT] Rules: Evaluate independent rules concurrently #12946, #13527
* [ENHANCEMENT] Scraping (experimental native histograms): Support exemplars #13488
* [ENHANCEMENT] Remote Write: Disable resharding during active retry backoffs #13562
* [ENHANCEMENT] Observability: Add native histograms to latency/duration metrics \ 
#13681
* [ENHANCEMENT] Observability: Add 'type' label to \ 
prometheus_tsdb_head_out_of_order_samples_appended_total #13607
* [ENHANCEMENT] API: Faster generation of targets into JSON #13469, #13484
* [ENHANCEMENT] Scraping, API: Use faster compression library #10782
* [ENHANCEMENT] OpenTelemetry: Performance improvements in OTLP parsing #13627
* [ENHANCEMENT] PromQL: Optimisations to reduce CPU and memory #13448, #13536
* [BUGFIX] PromQL: Constrain extrapolation in rate() to half of sample interval \ 
#13725
* [BUGFIX] Remote Write: Stop slowing down when a new WAL segment is created \ 
#13583, #13628
* [BUGFIX] PromQL: Fix wrongly scoped range vectors with @ modifier #13559
* [BUGFIX] Kubernetes SD: Pod status changes were not discovered by Endpoints \ 
service discovery #13337
* [BUGFIX] Azure SD: Fix 'error: parameter virtualMachineScaleSetName cannot be \ 
empty' (#13702)
* [BUGFIX] Remote Write: Fix signing for AWS sigv4 transport #13497
* [BUGFIX] Observability: Exemplars emitted by Prometheus use \ 
"trace_id" not "traceID" #13589