etcd: `tlsListener.acceptLoop` spawns unbounded handshake goroutines with no deadline

{
                    "vendor": "etcd-io",
                    "product": "etcd",
                    "versions": [
                        {
                            "version": "< 3.5.33",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.6.0, < 3.6.14",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.7.0-alpha.0, < 3.7.1",
                            "status": "affected"
                        }
                    ]
                }