fix: missing cleanup of tmp folders in NAS gateway setup (#13124)

console service should be shutdown last once all shutdown
sequences are complete, this is to ensure that we do not
prematurely kill the server before it cleans up the

`.minio.sys/tmp/uuid` folder.

NOTE: this only applies to NAS gateway setup.

cmd/server-main.go

@@ -582,20 +582,17 @@ func serverMain(ctx *cli.Context) {
 	}
 
 	if globalBrowserEnabled {
-		consoleSrv, err := initConsoleServer()
+		globalConsoleSrv, err = initConsoleServer()
 		if err != nil {
 			logger.FatalIf(err, "Unable to initialize console service")
 		}
 
 		go func() {
-			logger.FatalIf(consoleSrv.Serve(), "Unable to initialize console server")
+			logger.FatalIf(globalConsoleSrv.Serve(), "Unable to initialize console server")
 		}()
-
-		<-globalOSSignalCh
-		consoleSrv.Shutdown()
-	} else {
-		<-globalOSSignalCh
 	}
+
+	<-globalOSSignalCh
 }
 
 // Initialize object layer with the supplied disks, objectLayer is nil upon any error.