Account name in a service

[jpopelka]

When we load service instances from a dictionary I'd like to be able to load an account name associated with the token so that I could use it later.

There are places in packit-service and hardly where we hardcode those values (account names associated with service used by bot/deployment). We could remove those if it was possible to take the values from the service config.

[stale]

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[mfocko]

@mfocko will have a look