PooledEngine: log the engine type

rendering/pooled_engine.go

@@ -48,7 +48,10 @@
 		}
 	}
 
-	log.Info().Int("worker-pool-size", size).Msg("successfully spawned workers")
+	log.Info().
+		Str("engine-type", e.Info().Type).
+		Int("worker-pool-size", size).
+		Msg("successfully spawned workers")
 
 	return &e, nil
 }