some sleep to avoid fs not found errors

test/stress.sh

@@ -11,6 +11,8 @@ for i in {1..1000}; do
     node --trace-warnings --experimental-specifier-resolution=node ./stressnode.js&
 done
 
+sleep 1
+
 # validate by count the number of records on folder /tmp/audit is equal to 1000
 while [ $(ls -1 /tmp/audit/*.json | wc -l) -ne 1000 ]; do
     sleep 1