Revert "Move the metric API back to experimental-metrics (#3987)" (#4038

)

* Revert "Move the metric API back to experimental-metrics (#3987)"

This reverts commit 5134557.

* Add change to changelog

CHANGELOG.md

@@ -8,6 +8,11 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [Unreleased]
 
+### Changed
+
+- Move the `go.opentelemetry.io/otel/metric` module to the `stable-v1` module set.
+  This stages the metric API to be released as a stable module. (#4038)
+
 ## [1.15.1/0.38.1] 2023-05-02
 
 ### Fixed

versions.yaml

@@ -32,6 +32,7 @@ module-sets:
       - go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp
       - go.opentelemetry.io/otel/exporters/stdout/stdouttrace
       - go.opentelemetry.io/otel/exporters/zipkin
+      - go.opentelemetry.io/otel/metric
       - go.opentelemetry.io/otel/sdk
       - go.opentelemetry.io/otel/trace
   experimental-metrics:
@@ -44,7 +45,6 @@ module-sets:
       - go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp
       - go.opentelemetry.io/otel/exporters/prometheus
       - go.opentelemetry.io/otel/exporters/stdout/stdoutmetric
-      - go.opentelemetry.io/otel/metric
       - go.opentelemetry.io/otel/sdk/metric
       - go.opentelemetry.io/otel/bridge/opencensus
       - go.opentelemetry.io/otel/bridge/opencensus/test