fix: 解决 redis 没有密码情况下安装应用没有关联的问题 (#6173)

Refs #6174

backend/app/service/app_utils.go

@@ -186,9 +186,12 @@ func createLink(ctx context.Context, app model.App, appInstall *model.AppInstall
 			}
 		case constant.AppRedis:
 			if password, ok := params["PANEL_REDIS_ROOT_PASSWORD"]; ok {
-				if password != "" {
 				authParam := dto.RedisAuthParam{
-						RootPassword: password.(string),
+					RootPassword: "",
+				}
+				if password != "" {
+					authParam.RootPassword = password.(string)
+					database.Password = password.(string)
 				}
 				authByte, err := json.Marshal(authParam)
 				if err != nil {
@@ -196,8 +199,6 @@ func createLink(ctx context.Context, app model.App, appInstall *model.AppInstall
 				}
 				appInstall.Param = string(authByte)
 			}
-				database.Password = password.(string)
-			}
 		}
 		if err := databaseRepo.Create(ctx, database); err != nil {
 			return err