RabbitMQ: list_to_atom on auth_mechanism URI tokens in amqp_client

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "rabbitmq",
                    "product": "rabbitmq-server",
                    "versions": [
                        {
                            "version": ">= 3.13.0, < 3.13.15",
                            "status": "affected"
                        },
                        {
                            "version": ">= 4.0.0, < 4.0.20",
                            "status": "affected"
                        },
                        {
                            "version": ">= 4.1.0, < 4.1.11",
                            "status": "affected"
                        },
                        {
                            "version": ">= 4.2.0, < 4.2.6",
                            "status": "affected"
                        }
                    ]
                }