autofac should be upgraded to 4.9.4

[real-zony]

In the current release, autofac is version 4.9.3, which has some issues with SignalR.
For details, please refer to autofac/Autofac#1017.

public class GatewayManagementController : AbpController
{
    private readonly IHubContext<FrontNotifyHub,IFrontNotifier> _hubContext;

    public GatewayManagementController(IHubContext<FrontNotifyHub,IFrontNotifier> hubContext)
    {
        _hubContext = hubContext;
    }
}

exception:

[17:31:36 ERR] Connection id "0HLPPNPTOKD0T", Request id "0HLPPNPTOKD0T:00000002": An unhandled exception was thrown by the application.
Autofac.Core.DependencyResolutionException: An exception was thrown while activating HospitalMonitor.HttpApi.Controllers.GatewayManagementController. ---> Autofac.Core.Dependen
cyResolutionException: None of the constructors found with 'Autofac.Core.Activators.Reflection.DefaultConstructorFinder' on type 'HospitalMonitor.HttpApi.Controllers.GatewayMan
agementController' can be invoked with the available services and parameters:
Cannot resolve parameter 'Microsoft.AspNetCore.SignalR.IHubContext`2[HospitalMonitor.HttpApi.SignalR.FrontNotifyHub,HospitalMonitor.HttpApi.SignalR.IFrontNotifier] hubContext'
of constructor 'Void .ctor(Microsoft.AspNetCore.SignalR.IHubContext`2[HospitalMonitor.HttpApi.SignalR.FrontNotifyHub,HospitalMonitor.HttpApi.SignalR.IFrontNotifier])'.
   at Autofac.Core.Activators.Reflection.ReflectionActivator.GetValidConstructorBindings(IComponentContext context, IEnumerable`1 parameters) in C:\projects\autofac\src\Autofac
\Core\Activators\Reflection\ReflectionActivator.cs:line 162
   at Autofac.Core.Activators.Reflection.ReflectionActivator.ActivateInstance(IComponentContext context, IEnumerable`1 parameters) in C:\projects\autofac\src\Autofac\Core\Activ
ators\Reflection\ReflectionActivator.cs:line 120
   at Autofac.Core.Resolving.InstanceLookup.Activate(IEnumerable`1 parameters, Object& decoratorTarget) in C:\projects\autofac\src\Autofac\Core\Resolving\InstanceLookup.cs:line
 121
   --- End of inner exception stack trace ---
   at Autofac.Core.Resolving.InstanceLookup.Activate(IEnumerable`1 parameters, Object& decoratorTarget) in C:\projects\autofac\src\Autofac\Core\Resolving\InstanceLookup.cs:line
 135
   at Autofac.Core.Resolving.InstanceLookup.Execute() in C:\projects\autofac\src\Autofac\Core\Resolving\InstanceLookup.cs:line 83
   at Autofac.Core.Resolving.ResolveOperation.GetOrCreateInstance(ISharingLifetimeScope currentOperationScope, IComponentRegistration registration, IEnumerable`1 parameters) in
 C:\projects\autofac\src\Autofac\Core\Resolving\ResolveOperation.cs:line 131
   at Autofac.Core.Resolving.ResolveOperation.ResolveComponent(IComponentRegistration registration, IEnumerable`1 parameters) in C:\projects\autofac\src\Autofac\Core\Resolving\
ResolveOperation.cs:line 69
   at Autofac.Core.Resolving.ResolveOperation.Execute(IComponentRegistration registration, IEnumerable`1 parameters) in C:\projects\autofac\src\Autofac\Core\Resolving\ResolveOp
eration.cs:line 84
   at Autofac.Core.Lifetime.LifetimeScope.ResolveComponent(IComponentRegistration registration, IEnumerable`1 parameters) in C:\projects\autofac\src\Autofac\Core\Lifetime\Lifet
imeScope.cs:line 282
   at Autofac.ResolutionExtensions.TryResolveService(IComponentContext context, Service service, IEnumerable`1 parameters, Object& instance) in C:\projects\autofac\src\Autofac\
ResolutionExtensions.cs:line 1041
   at Autofac.ResolutionExtensions.ResolveService(IComponentContext context, Service service, IEnumerable`1 parameters) in C:\projects\autofac\src\Autofac\ResolutionExtensions.
cs:line 877
   at Autofac.ResolutionExtensions.Resolve(IComponentContext context, Type serviceType, IEnumerable`1 parameters) in C:\projects\autofac\src\Autofac\ResolutionExtensions.cs:lin
e 347
   at Autofac.ResolutionExtensions.Resolve(IComponentContext context, Type serviceType) in C:\projects\autofac\src\Autofac\ResolutionExtensions.cs:line 331
   at Autofac.Extensions.DependencyInjection.AutofacServiceProvider.GetRequiredService(Type serviceType) in D:\Github\abp\framework\src\Volo.Abp.Autofac\Autofac\Extensions\Depe
ndencyInjection\AutofacServiceProvider.cs:line 69
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
   at Microsoft.AspNetCore.Mvc.Controllers.ServiceBasedControllerActivator.Create(ControllerContext actionContext)
   at Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider.<>c__DisplayClass5_0.<CreateControllerFactory>g__CreateController|0(ControllerContext controllerContext)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeInnerFilterAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextExceptionFilterAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ExceptionContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync()
   at Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication`1 application)