MLflow CrewAI autologging records LLM provider API keys in logged trace spans

Summary mlflow.crewai.autolog leaks CrewAI LLM provider API keys into MLflow trace telemetry. When a CrewAI Agent is instrumented with MLflow autologging, MLflow serializes the agent's dict and converts its fields to strings. The llm field contains the CrewAI LLM object, whose string representati...