Coordinate shutdown of AdaptiveDirectoryCacheMaintainer with LocalGrainDirectory

[ReubenBond]

I saw this during a reliability test run:

[08:41:39 INF] fail: Orleans.Runtime.GrainDirectory.AdaptiveDirectoryCacheMaintainer[100026]
[08:41:39 INF]       Asynch agent Runtime.GrainDirectory.AdaptiveDirectoryCacheMaintainer encountered unexpected exception. The Stage will be restarted.
[08:41:39 INF]       System.ObjectDisposedException: Cannot access a disposed object.
[08:41:39 INF]       Object name: 'IServiceProvider'.
[08:41:39 INF]          at Microsoft.Extensions.DependencyInjection.ServiceLookup.ThrowHelper.ThrowObjectDisposedException()
[08:41:39 INF]          at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
[08:41:39 INF]          at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
[08:41:39 INF]          at Orleans.GrainReferences.GrainReferenceActivatorProvider.TryGet(GrainType grainType, GrainInterfaceType interfaceType, IGrainReferenceActivator& activator) in C:\dev\orleans\src\Orleans.Core\GrainReferences\GrainReferenceActivator.cs:line 336
[08:41:39 INF]          at Orleans.GrainReferences.GrainReferenceActivator.CreateActivator(GrainType grainType, GrainInterfaceType interfaceType) in C:\dev\orleans\src\Orleans.Core\GrainReferences\GrainReferenceActivator.cs:line 77
[08:41:39 INF]          at Orleans.GrainReferences.GrainReferenceActivator.CreateReference(GrainId grainId, GrainInterfaceType interfaceType) in C:\dev\orleans\src\Orleans.Core\GrainReferences\GrainReferenceActivator.cs:line 54
[08:41:39 INF]          at Orleans.GrainFactory.CreateGrainReference(Type interfaceType, GrainId grainId) in C:\dev\orleans\src\Orleans.Core\Core\GrainFactory.cs:line 230
[08:41:39 INF]          at Orleans.GrainFactory.GetGrain[TGrainInterface](GrainId grainId) in C:\dev\orleans\src\Orleans.Core\Core\GrainFactory.cs:line 144
[08:41:39 INF]          at Orleans.GrainFactory.GetSystemTarget[TGrainInterface](GrainId grainId) in C:\dev\orleans\src\Orleans.Core\Core\GrainFactory.cs:line 135
[08:41:39 INF]          at Orleans.GrainFactory.GetSystemTarget[TGrainInterface](GrainType grainType, SiloAddress destination) in C:\dev\orleans\src\Orleans.Core\Core\GrainFactory.cs:line 118
[08:41:39 INF]          at Orleans.Runtime.GrainDirectory.AdaptiveDirectoryCacheMaintainer.SendBatchCacheRefreshRequests(Dictionary`2 refreshRequests) in C:\dev\orleans\src\Orleans.Runtime\GrainDirectory\AdaptiveDirectoryCacheMaintainer.cs:line 136
[08:41:39 INF]          at Orleans.Runtime.GrainDirectory.AdaptiveDirectoryCacheMaintainer.Run() in C:\dev\orleans\src\Orleans.Runtime\GrainDirectory\AdaptiveDirectoryCacheMaintainer.cs:line 116
[08:41:39 INF]          at Orleans.Runtime.TaskSchedulerAgent.StartAsync() in C:\dev\orleans\src\Orleans.Core\Scheduler\TaskSchedulerAgent.cs:line 77

This PR fixes the error by coordinating the shutdown of AdaptiveDirectoryCacheMaintainer with LocalGrainDirectory and Silo.

Microsoft Reviewers: Open in CodeFlow