Always require a client for running a worker (#52)

* Always require a client for running a worker

* Actually validate roles

* Delete worker

Fixes #46

* Update internal/worker/worker.go

Co-authored-by: Nikolay Edigaryev <edigaryev@gmail.com>

---------

Co-authored-by: Nikolay Edigaryev <edigaryev@gmail.com>

internal/command/worker/run.go

@@ -59,7 +59,7 @@ func runWorker(cmd *cobra.Command, args []string) (err error) {
 		}
 	}()
 
-	workerInstance, err := worker.New(worker.WithClient(controllerClient), worker.WithLogger(logger))
+	workerInstance, err := worker.New(controllerClient, worker.WithLogger(logger))
 	if err != nil {
 		return err
 	}