fix(steps-guix): add libevent-2.1.12 before avahi dependency chain

steps-guix/avahi-0.8/pass1.sh

@@ -16,8 +16,11 @@ src_configure() {
         --includedir="${PREFIX}/include" \
         --host="${host_triplet}" \
         --build="${host_triplet}" \
+        --with-distro=lfs \
         --enable-static \
         --enable-shared \
+        --disable-glib \
+        --disable-gobject \
         --disable-gtk \
         --disable-gtk3 \
         --disable-qt3 \