Python Telemetry v3.4.0

Changed

• Bumped OpenTelemetry core to 1.42.1 (opentelemetry-{api,sdk,exporter-otlp-proto-http} 1.38.0 → 1.42.1, opentelemetry-instrumentation-threading 0.59b0 → 0.63b1, pulling opentelemetry-semantic-conventions 0.59b0 → 0.63b1). opentelemetry-instrumentation-bedrock references GenAIAttributes.GEN_AI_TOOL_DEFINITIONS, which only exists in semconv ≥0.60b0; with the previous pin (0.59b0) any Bedrock Converse call carrying a toolConfig raised AttributeError inside the instrumentor — silently swallowed by its @dont_throw, dropping the entire conversation, token usage, and cost for tool-enabled turns (plain chat/stream were unaffected). Bedrock tool conversations now capture the full exchange, usage, cost, and tool definitions.