change to /api/v2/heartbeat

dashboard-v6/src/api/api-health.ts

@@ -6,5 +6,5 @@ export interface IHealth {
   createdAt: string;
 }
 export const apiServerHealth = (): Promise<IHealth> => {
-  return get<IHealth>("/api/v2/health-check");
+  return get<IHealth>("/api/v2/heartbeat");
 };