fix(ci): don't throw an error about missing lsof

Author: stainless-app[bot]

scripts/test

@@ -14,6 +14,10 @@ function prism_is_running() {
 }
 
 kill_server_on_port() {
+  if [ ! "$(which lsof)" ]; then
+    echo "Warning: lsof not found. Prism will not be killed."
+    return 0
+  fi
   pids=$(lsof -t -i tcp:"$1" || echo "")
   if [ "$pids" != "" ]; then
     kill "$pids"