test_integration_pumactl.rb - adjust test_phased_restart_cluster
test_integration_pumactl.rb - adjust test_phased_restart_cluster

macOS CI intermittently fails, times were ~ 6.5 to 8.0 sec, see:
https://github.com/puma/puma/runs/1083927456#step:7:435

Hopefully, the server is taking a while to start, so moving the time of  start to after it's booted will stop the failures.

eileencodes/puma,puma/puma,puma/puma,eileencodes/puma,eileencodes/puma,puma/puma,puma/puma,eileencodes/puma