Release v1.23.1/v0.43.2

[MrAlias]

Fixed

• Register all callbacks passed during observable instrument creation instead of just the last one multiple times in go.opentelemetry.io/otel/sdk/metric. (Fix callback registration bug #4888)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (11ebd19) 82.6% compared to head (4da346b) 82.6%.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #4892   +/-   ##
=====================================
  Coverage   82.6%   82.6%           
=====================================
  Files        232     232           
  Lines      18870   18870           
=====================================
  Hits       15603   15603           
  Misses      2977    2977           
  Partials     290     290           

Files	Coverage Δ
bridge/opencensus/version.go	100.0% <100.0%> (ø)
...xporters/otlp/otlpmetric/otlpmetricgrpc/version.go	100.0% <100.0%> (ø)
...xporters/otlp/otlpmetric/otlpmetrichttp/version.go	100.0% <100.0%> (ø)
exporters/otlp/otlptrace/version.go	100.0% <100.0%> (ø)
sdk/metric/version.go	100.0% <100.0%> (ø)
sdk/version.go	100.0% <100.0%> (ø)
version.go	100.0% <100.0%> (ø)