fix(guix-pull): create /etc/services before daemon startup

steps-guix/improve/services.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+set -e
+
+mkdir -p /etc
+
+cat > /etc/services <<'EOF'
+http            80/tcp
+http            80/udp
+https           443/tcp
+https           443/udp
+EOF

steps-guix/manifest

@@ -69,6 +69,7 @@ build: mescc-tools-static-stripped-0.5.2-i686-linux
 # End of Guix Bootstrap seeds
 build: guix-hash-compat-1.5.0
 build: guix-1.5.0
+improve: services
 improve: guix-daemon-and-pull
 improve: guix-build-iso