Event Hub blob partition lease conflict

This webjob works fine running on Windows with the Windows Storage Emulator.

### Which service(blob, file, queue, table) does this issue concern?

blob

### Which version of the Azurite was used?

v2

### Where do you get Azurite? (npm, DockerHub, NuGet, Visual Studio Code Extension)

DockerHub

### What's the Node.js version?

`6.11.2`

### What problem was encountered?

```
Microsoft.Azure.WebJobs.Host.Listeners.FunctionListenerException: The listener for function 'RouterHost.Route' was unable to start. ---> Microsoft.Azure.EventHubs.Processor.EventProcessorRuntimeException: Out of retries creating lease for partition ---> Microsoft.Window
sAzure.Storage.StorageException: Conflict
at Microsoft.WindowsAzure.Storage.Core.Executor.Executor.ExecuteAsyncInternal[T](RESTCommand`1 cmd, IRetryPolicy policy, OperationContext operationContext, CancellationToken token)
at Microsoft.WindowsAzure.Storage.Blob.CloudBlockBlob.UploadFromStreamAsyncHelper(Stream source, Nullable`1 length, AccessCondition accessCondition, BlobRequestOptions options, OperationContext operationContext, IProgress`1 progressHandler, CancellationToken cancella
tionToken)
at Microsoft.Azure.EventHubs.Processor.AzureStorageCheckpointLeaseManager.CreateLeaseIfNotExistsAsync(String partitionId)
at Microsoft.Azure.EventHubs.Processor.AzureStorageCheckpointLeaseManager.CreateLeaseIfNotExistsAsync(String partitionId)
at Microsoft.Azure.EventHubs.Processor.PartitionManager.RetryAsync(Func`1 lambda, String partitionId, String retryMessage, String finalFailureMessage, String action, Int32 maxRetries)
--- End of inner exception stack trace ---
at Microsoft.Azure.EventHubs.Processor.PartitionManager.RetryAsync(Func`1 lambda, String partitionId, String retryMessage, String finalFailureMessage, String action, Int32 maxRetries)
at Microsoft.Azure.EventHubs.Processor.PartitionManager.InitializeStoresAsync()
at Microsoft.Azure.EventHubs.Processor.PartitionManager.StartAsync()
at Microsoft.Azure.EventHubs.Processor.EventProcessorHost.RegisterEventProcessorFactoryAsync(IEventProcessorFactory factory, EventProcessorOptions processorOptions)
at Medumo.WebJobs.Extensions.EventHub.Binding.EventHubListener.StartAsync(CancellationToken cancellationToken)
at Microsoft.Azure.WebJobs.Host.Listeners.FunctionListener.StartAsync(CancellationToken cancellationToken, Boolean allowRetry) in C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Listeners\FunctionListener.cs:line 69
```

### Steps to reproduce the issue?

- Use macOS
- `docker run -d -t -p 10000:10000 -p 10001:10001 -p 10002:10002 -v /Users/myuser/azurite:/opt/azurite/folder arafato/azurite`
- Create .NET Core 2.2 class library
- Setup `HostBuilder` to search for `EventHubTriggerAttribute`
- Set up a `EventHubTrigger` class/function (see [here](https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-event-hubs))
- Run WebJob with `dotnet run --project MyWebJobProject`

### Have you found a mitigation/solution?

No