opentelemetry-util-genai 0.1b0

• Add completion hook to genai utils to implement semconv v1.37.

  Includes a hook implementation using fsspec to support uploading to various pluggable backends.

  (#3780) (#3752) (#3759) (#3763)

• Add a utility to parse the OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT environment variable. Add gen_ai_latest_experimental as a new value to the Sem Conv stability flag (#3716).