fix: don't specify worker count for config watcher

We will need to test how this scales with added clients
5 jobs for 40-use-threadpoolexecutor-in-place-of-processpoolexecutor in 59 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Ci Lint
passed #461746
shell
ci_lint

00:00:02

 
  Lint
passed #461747
docker
lint

00:00:21

 
  Build
passed #461748
shell
build

00:00:24

 
  Test
passed #461749
shell
test

00:00:05

 
  Release
passed #461750
shell
release

00:00:05