Release exporters/prometheus/v0.59.1

[dashpole]

Patch release for #7039

Changed

• Retract v0.59.0 release of go.opentelemetry.io/otel/exporters/prometheus module which appends incorrect unit suffixes. (Retract most recent prometheus exporter release #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. (Migrate prometheus exporter to otlptranslator #7044)

Fixed

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.8%. Comparing base (f6b5fb9) to head (07eda5a).
Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #7056   +/-   ##
=====================================
  Coverage   82.8%   82.8%           
=====================================
  Files        261     261           
  Lines      24361   24371   +10     
=====================================
+ Hits       20173   20200   +27     
+ Misses      3813    3796   -17     
  Partials     375     375           

see 4 files with indirect coverage changes

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[dashpole]

Merging prior to 24h to unblock the collector