update changelog

Signed-off-by: Alex Boten <aboten@lightstep.com>

CHANGELOG.md

@@ -15,7 +15,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - Add `"go.opentelemetry.io/contrib/config"` package that includes configuration models generated via go-jsonschema. (#4376)
 - Add `NewSDK` function to `"go.opentelemetry.io/contrib/config"`. The initial implementation only returns noop providers. (#4414)
 - Add metrics support (No-op, OTLP and Prometheus) to `go.opentelemetry.io/contrib/exporters/autoexport`. (#4229, #4479)
-- Add support for standard output exporter via environment variables for the metric and trace signals identified by the key: `console`. ()
+- Add support for standard output exporter via environment variables for the metric and trace signals identified by the key: `console`. (#4486)
 
 ### Changed