[release] Prepare release Instrumentation.ConfluentKafka-0.1.0-alpha.4 (#3491)

Signed-off-by: otelbot <[email protected]>
Co-authored-by: otelbot <[email protected]>

Author: otelbot-dotnet-contrib[bot]

src/OpenTelemetry.Instrumentation.ConfluentKafka/CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 0.1.0-alpha.4
+
+Released 2025-Nov-13
+
 * Add support for .NET 10.0.
   ([#2822](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/2822))