Run jobs individually

[filoozom]

For example, in #10 both the sprinkle job and the faucet command run in the same process. This means that if there's an issue with the sprinkle job (for example the contract needs to be updated or we ran out of gas or something), both processes need to be restarted.

If both things are done in two different processes, we can still collect addresses to sprinkle while working on the sprinkle job.