Update default worker_ttl to 2 minutes

4 jobs for dead-workers in 16 minutes and 13 seconds (queued for 1 second)
Status Name Job ID Coverage
  Build
passed build_linux_37 #242736
docker

00:12:57

passed build_linux_38 #242737
docker

00:11:36

passed build_macos_intel_37 #242734
macos intel

00:16:10

passed build_macos_intel_38 #242735
macos intel

00:13:46