feat(update): update the backend like nodes via quadlet restart [CI]

backend/src/MoShiro.Backend.Application/ApplicationServiceCollectionExtensions.cs

@@ -52,7 +52,6 @@ public static class ApplicationServiceCollectionExtensions
         services.AddSingleton<ReleaseService>();
         services.AddSingleton<ScheduleService>();
         services.AddSingleton<BackendUpdates>();
-        services.AddHostedService(p => p.GetRequiredService<BackendUpdates>());
         services.AddSingleton<JoinTokenService>();
         services.AddSingleton<RawBrowserService>();
         services.AddSingleton<EventService>();