Remove workers from proxy config file

[SantiagoPittella]

What should be done?

The proxy should receive the workers through the start-proxy CLI command as a parameter

How should it be done?

• Remove the worker list from the configuration file.
• Add a parameter to the start-proxy command to declare the workers.

When is this task done?

The task is done when we don't persist the workers anymore.

Additional context

No response

[bobbinth]

I was actually thinking that we'd keep the config file but take the list of workers out of it since this part seems to be pretty dynamic.

We could also do a combination of strategies - i.e., CLI params override the config file. But either way, I'd remove the list of workers from the config file.