Dependencies for performance evaluation: Install nmap-ncat

telnet appears unused.
Further, `nc` from the package `telnet` rather than `nmap-ncat` does not
work with
fs-testing/scripts/script_perf-benchmark_without-tracing_nova-hello-world.sh
because the former `nc` executable does not terminate once it receives
EOF in its input.

README.md

@@ -35,7 +35,7 @@ installed. See "Artifact Evaluation" below.
 sudo dnf install python3-pip python3-mypy python3-capstone glibc-static \
 	elfutils-libelf-devel dtc capstone-devel libdwarf-devel glib2-devel \
 	pixman-devel protobuf-devel protobuf-c-devel curl-devel jsoncpp-devel \
-	chrpath datamash telnet
+	chrpath datamash nmap-ncat
 pip install yq sortedcontainers
 
 # Rust via rustup (see https://rustup.rs)

artifact-evaluation/vm/install-vinter.sh

@@ -15,7 +15,7 @@ setup_root() {
 	echo vinter | passwd --stdin vinter
 	chown -R vinter:vinter /home/vinter
 
-	dnf install -y '@C Development Tools and Libraries' podman git zip zstd bc time jq qemu-img python3-pip python3-mypy python3-capstone glibc-static elfutils-libelf-devel dtc capstone-devel libdwarf-devel glib2-devel pixman-devel protobuf-devel protobuf-c-devel curl-devel jsoncpp-devel chrpath datamash telnet
+	dnf install -y '@C Development Tools and Libraries' podman git zip zstd bc time jq qemu-img python3-pip python3-mypy python3-capstone glibc-static elfutils-libelf-devel dtc capstone-devel libdwarf-devel glib2-devel pixman-devel protobuf-devel protobuf-c-devel curl-devel jsoncpp-devel chrpath datamash nmap-ncat
 	pip install yq sortedcontainers
 
 	# Disable SELinux so that podman works.