packer/scripts/cloud.sh: use packaged growpart and core-service

packer/scripts/cloud.sh

@@ -5,20 +5,10 @@ echo "Defaults:void !requiretty" >> /etc/sudoers.d/99-void
 chmod 0440 /etc/sudoers.d/99-void
 mv /etc/sudoers.d/{,10-}wheel
 
-xbps-fetch -o /usr/bin/growpart https://raw.githubusercontent.com/canonical/cloud-utils/ubuntu/0.31-22-g37d4e32a-0ubuntu1/bin/growpart
-chmod +x /usr/bin/growpart
-
-xbps-install -Sy util-linux coreutils sed shinit
+xbps-install -Sy util-linux coreutils sed shinit cloud-guest-utils
 ln -s /etc/sv/shinit /var/service/
 
-cat <<'EOF' > /etc/runit/core-services/10-resize-root.sh
-#!/bin/sh
-rpart=$(findmnt -r -o SOURCE -v -n /)
-rnum=$(cat /sys/class/block/$(basename $rpart)/partition)
-
-/usr/bin/growpart ${rpart%%$rnum} $rnum
-resize2fs $rpart
-EOF
+sed -i -e 's/#ENABLE/ENABLE/' /etc/default/growpart
 
 passwd -dl void
 passwd -dl root