Worker: move wait time into variable

No functional changes.

internal/worker/state_awake.go

@@ -15,8 +15,9 @@ import (
 
 const (
 	// How long to wait to fetch another task...
-	durationNoTask      = 2 * time.Second  // ... if there is no task now.
-	durationFetchFailed = 10 * time.Second // ... if fetching failed somehow.
+	durationNoTask       = 2 * time.Second  // ... if there is no task now.
+	durationFetchFailed  = 10 * time.Second // ... if fetching failed somehow.
+	durationTaskComplete = 2 * time.Second  // ... when a task was completed.
 )
 
 func (w *Worker) gotoStateAwake(ctx context.Context) {
@@ -64,7 +65,7 @@ func (w *Worker) runStateAwake(ctx context.Context) {
 		}
 
 		// Do some rate limiting. This is mostly useful while developing.
-		time.Sleep(2 * time.Second)
+		time.Sleep(durationTaskComplete)
 	}
 }