Copy changelog updates from package-release/opentelemetry-util-genai/v0.1bx (#3790)

Co-authored-by: otelbot <[email protected]>
Co-authored-by: Riccardo Magliocchetti <[email protected]>

Author: otelbot[bot]

util/opentelemetry-util-genai/CHANGELOG.md

@@ -14,7 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Record content-type and use canonical paths in fsspec genai uploader
   ([https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3795](#3795))
 
-## Version 0.1b0 (2025-09-24)
+## Version 0.1b0 (2025-09-25)
 
 - Add completion hook to genai utils to implement semconv v1.37.