[test] test-config: default_delay: 1

Maybe this will fix notifications for job finish
5 jobs for 238-dev-async-job-worker in 46 minutes and 5 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Cabal
passed #16190
cabal

00:20:08

 
  Stack
passed #16191
stack

00:06:36

 
  Bench
manual #16192
allowed to fail manual
bench
 
  Test
passed #16210
test

00:19:20

failed #16193
test

00:19:43