Add changes to changelog

Author: MrAlias

CHANGELOG.md

@@ -31,6 +31,8 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
   - The `SpanStatusFromHTTPStatusCodeAndSpanKind` function in `go.opentelemetry.io/otel/semconv/v1.12.0` is split into `ClientStatus` and `ServerStatus` in `go.opentelemetry.io/otel/semconv/v1.13.0/httpconv`.
   - The `Client` function is included in `go.opentelemetry.io/otel/semconv/v1.13.0/netconv` to generate attributes for a `net.Conn`.
   - The `Server` function is included in `go.opentelemetry.io/otel/semconv/v1.13.0/netconv` to generate attributes for a `net.Listener`.
+- Add the `go.opentelemetry.io/otel/semconv/v1.16.0` package.
+  The package contains semantic conventions from the `v1.16.0` version of the OpenTelemetry specification. (#3579)
 
 ### Changed