Update opentelemetry-util-genai version to v0.2b0#3783

aabmass merged 3 commits intomainopen-telemetry/opentelemetry-python-contrib:mainfrom

otelbot/update-opentelemetry-util-genai-version-to-v0.2b0open-telemetry/opentelemetry-python-contrib:otelbot/update-opentelemetry-util-genai-version-to-v0.2b0Copy head branch name to clipboard