Add changelog entry for version bump of otlptranslator - suffixes are now deduplicated (#7086)

Follow-up to #7088 

With this bump, we fix the problem where duplicated suffixes were
appearing otel-collector metrics

---------

Signed-off-by: Arthur Silva Sens <arthursens2005@gmail.com>
Co-authored-by: Damien Mathieu <42@dmathieu.com>
Co-authored-by: David Ashpole <dashpole@google.com>
Co-authored-by: Robert Pająk <pellared@hotmail.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>

Author: 5 people

CHANGELOG.md

@@ -55,6 +55,10 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - Change `SDKProcessorLogQueueCapacity`, `SDKProcessorLogQueueSize`, `SDKProcessorSpanQueueSize`, and `SDKProcessorSpanQueueCapacity` in `go.opentelemetry.io/otel/semconv/v1.36.0/otelconv` to use a `Int64ObservableUpDownCounter`. (#7041)
 - Change `DefaultExemplarReservoirProviderSelector` in `go.opentelemetry.io/otel/sdk/metric` to use `runtime.GOMAXPROCS(0)` instead of `runtime.NumCPU()` for the `FixedSizeReservoirProvider` default size. (#7094)
 
+### Fixed
+
+- Fix `go.opentelemetry.io/otel/exporters/prometheus` to deduplicate suffixes if already present in metric name when UTF8 is enabled. (#7088)
+
 <!-- Released section -->
 <!-- Don't change this section unless doing release -->