Fix add-devices --server command error

[anoworl]

I fixed add-devices --server command error.
This error maybe occurred from #270 .

Before

I ran this command and installed a configuration profile to a device and got the exception.

$ dg add-devices --server --distribution-key XXXX
Start add-devices server. Use Ctrl-C to stop.
New device has been added. Start add-devices command.
Device [Name: iPod touch (7 Gen), UDID: xxxx] successfully registered.
Your Workers::Worker exception handler raised an error. Fix your handler!
ArgumentError: wrong number of arguments (given 3, expected 4)
/Users/sota/.rvm/gems/ruby-2.6.9/gems/deploygate-0.8.4/lib/deploygate/commands/add_devices.rb:72:in `build!'
/Users/sota/.rvm/gems/ruby-2.6.9/gems/deploygate-0.8.4/lib/deploygate/add_devices_server.rb:47:in `block in build'
/Users/sota/.rvm/gems/ruby-2.6.9/gems/workers-0.6.1/lib/workers/worker.rb:101:in `perform_handler'
/Users/sota/.rvm/gems/ruby-2.6.9/gems/workers-0.6.1/lib/workers/worker.rb:86:in `event_handler'
/Users/sota/.rvm/gems/ruby-2.6.9/gems/workers-0.6.1/lib/workers/worker.rb:73:in `process_event'
/Users/sota/.rvm/gems/ruby-2.6.9/gems/workers-0.6.1/lib/workers/worker.rb:67:in `start_event_loop'
/Users/sota/.rvm/gems/ruby-2.6.9/gems/workers-0.6.1/lib/workers/worker.rb:13:in `block in initialize'

After

I ran this command and installed a configuration profile to a device and succeed the command.

$ dg add-devices --server --distribution-key XXXX
Start add-devices server. Use Ctrl-C to stop.
New device has been added. Start add-devices command.
Device [Name: iPod touch (7 Gen), UDID: xxxx] successfully registered.

+-------------------------------------+---------------------+
|                 Summary for sigh 2.148.1                  |
+-------------------------------------+---------------------+
| adhoc                               | true                |
...
add-devices completed successfully.

[jmatsu]

😮 ... LGTM

[anoworl]

Thank you! 🙏