Release exporters/prometheus/v0.59.1 (#7056)

Patch release for
https://github.com/open-telemetry/opentelemetry-go/issues/7039

### Changed

- Retract `v0.59.0` release of
`go.opentelemetry.io/otel/exporters/prometheus` module which appends
incorrect unit suffixes. (#7046)
- Change `go.opentelemetry.io/otel/exporters/prometheus` to no longer
deduplicate suffixes when UTF8 is enabled.
It is recommended to disable unit and counter suffixes in the exporter,
and manually add suffixes if you rely on the existing behavior. (#7044)

### Fixed

- Fix `go.opentelemetry.io/otel/exporters/prometheus` to properly handle
unit suffixes when the unit is in brackets.
  E.g. `{spans}`. (#7044)

CHANGELOG.md

@@ -51,6 +51,15 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 - Change `AssertEqual` in `go.opentelemetry.io/otel/log/logtest` to accept `TestingT` in order to support benchmarks and fuzz tests. (#6908)
 - Change `SDKProcessorLogQueueCapacity`, `SDKProcessorLogQueueSize`, `SDKProcessorSpanQueueSize`, and `SDKProcessorSpanQueueCapacity` in `go.opentelemetry.io/otel/semconv/v1.36.0/otelconv` to use a `Int64ObservableUpDownCounter`. (#7041)
+
+<!-- Released section -->
+<!-- Don't change this section unless doing release -->
+
+## [0.59.1] 2025-07-21
+
+### Changed
+
+- Retract `v0.59.0` release of `go.opentelemetry.io/otel/exporters/prometheus` module which appends incorrect unit suffixes. (#7046)
 - Change `go.opentelemetry.io/otel/exporters/prometheus` to no longer deduplicate suffixes when UTF8 is enabled.
   It is recommended to disable unit and counter suffixes in the exporter, and manually add suffixes if you rely on the existing behavior. (#7044)
 
@@ -59,9 +68,6 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - Fix `go.opentelemetry.io/otel/exporters/prometheus` to properly handle unit suffixes when the unit is in brackets.
   E.g. `{spans}`. (#7044)
 
-<!-- Released section -->
-<!-- Don't change this section unless doing release -->
-
 ## [1.37.0/0.59.0/0.13.0] 2025-06-25
 
 ### Added

versions.yaml

@@ -22,7 +22,7 @@ module-sets:
       - go.opentelemetry.io/otel/sdk/metric
       - go.opentelemetry.io/otel/trace
   experimental-metrics:
-    version: v0.59.0
+    version: v0.59.1
     modules:
       - go.opentelemetry.io/otel/exporters/prometheus
   experimental-logs: