unbound-anchor is now part of ExecStartPre

it seems unbound-anchor is not a dep of unbound in ubuntu 24. some
installations are thus missing this package.

in any case, ignore unbound-anchor exit status

src/scripts/restartservice.sh

@@ -22,7 +22,6 @@ fi
 service="$1"
 
 if [[ "${service}" == "unbound" ]]; then
-    unbound-anchor -a /var/lib/unbound/root.key
     systemctl restart --no-block unbound
 elif [[ "${service}" == "nginx" ]]; then
     if systemctl -q is-active nginx; then