Fix taskset missing in container build by installing util-linux and adding fallback

scripts/with-memory-cap.sh

@@ -193,7 +193,11 @@ run_ulimit() {
 		echo "[mem-cap] ulimit -v $virtual_kb werd geweigerd" >&2
 		return 1
 	}
-	exec taskset -c "$cpu_affinity" "$@"
+	if command -v taskset >/dev/null 2>&1; then
+		exec taskset -c "$cpu_affinity" "$@"
+	else
+		exec "$@"
+	fi
 }
 
 run_refuse() {
@@ -204,7 +208,11 @@ run_refuse() {
 
 run_opted_out() {
 	echo "[mem-cap] WAARSCHUWING: plafond bewust uitgeschakeld, dit commando kan de machine laten OOM-killed worden: $*" >&2
-	exec taskset -c "$cpu_affinity" "$@"
+	if command -v taskset >/dev/null 2>&1; then
+		exec taskset -c "$cpu_affinity" "$@"
+	else
+		exec "$@"
+	fi
 }
 
 case "$backend" in