Update opentelemetry-util-genai version to v0.3b0 (open-telemetry#3844)

Co-authored-by: otelbot <197425009+otelbot@users.noreply.github.com>
Co-authored-by: Aaron Abbott <aaronabbott@google.com>

Author: 3 people

util/opentelemetry-util-genai/CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+## Version 0.2b0 (2025-10-14)
+
 - Add jsonlines support to fsspec uploader
   ([https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3791](#3791))
 - Rename "fsspec_upload" entry point and classes to more generic "upload"

util/opentelemetry-util-genai/src/opentelemetry/util/genai/version.py

@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.2b0.dev"
+__version__ = "0.3b0.dev"