Make windows worker run in a loop
Make windows worker run in a loop

This makes it so we can run this in a terminal, which is required to
support page load tests. We want this to loop itself so we don't have to
run extra control logic in the shell to make sure we always have a
worker.

mozilla/stoneridge,mozilla/stoneridge,mozilla/stoneridge,mozilla/stoneridge,mozilla/stoneridge,mozilla/stoneridge,mozilla/stoneridge,mozilla/stoneridge