Upgrade Polkadot-v1.6.0

• benchmarking v1 to v2.
• Replace GenesisBuilder.
• Upgrade cucumber cli.
• Upgrade workspace.

docker/docker-entrypoint

@@ -91,7 +91,7 @@ esac
 
 set -- "$@" \
   "${chain[@]}" \
-  -d /var/lib/duniter --unsafe-rpc-external --unsafe-ws-external
+  -d /var/lib/duniter --unsafe-rpc-external
 
 echo "Starting duniter with parameters:" "$@"
 exec duniter "$@"